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1311110240430 = 2351717314860141
BaseRepresentation
bin10011000101000100010…
…000101001100010101110
311122100012112020010220110
4103011010100221202232
5132440123210143210
62442152110400450
7163503351110034
oct23050420514256
94570175203813
101311110240430
11466047606281
12192128200126
1396838b0c6c3
144765ad54554
15241894dd420
hex131444298ae

1311110240430 has 64 divisors (see below), whose sum is σ = 3351021461568. Its totient is φ = 327160842240.

The previous prime is 1311110240423. The next prime is 1311110240459. The reversal of 1311110240430 is 340420111131.

It is a junction number, because it is equal to n+sod(n) for n = 1311110240397 and 1311110240406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7341841 + ... + 7518300.

It is an arithmetic number, because the mean of its divisors is an integer number (52359710337).

Almost surely, 21311110240430 is an apocalyptic number.

1311110240430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311110240430 is an abundant number, since it is smaller than the sum of its proper divisors (2039911221138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311110240430 is a wasteful number, since it uses less digits than its factorization.

1311110240430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14860341.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1311110240430 its reverse (340420111131), we get a palindrome (1651530351561).

The spelling of 1311110240430 in words is "one trillion, three hundred eleven billion, one hundred ten million, two hundred forty thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 170 173 255 346 510 519 865 1038 1730 2595 2941 5190 5882 8823 14705 17646 29410 44115 88230 14860141 29720282 44580423 74300705 89160846 148601410 222902115 252622397 445804230 505244794 757867191 1263111985 1515734382 2526223970 2570804393 3789335955 5141608786 7578671910 7712413179 12854021965 15424826358 25708043930 38562065895 43703674681 77124131790 87407349362 131111024043 218518373405 262222048086 437036746810 655555120215 1311110240430