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1311210310023 = 32155393811999
BaseRepresentation
bin10011000101001010001…
…110011000100110000111
311122100110111112012120200
4103011022032120212013
5132440324314410043
62442210043301543
7163506004512105
oct23051216304607
94570414465520
101311210310023
11466099045019
1219215581a8b3
1396853778a93
144766a362c75
15241931a87d3
hex1314a398987

1311210310023 has 12 divisors (see below), whose sum is σ = 1895190024000. Its totient is φ = 873577325376.

The previous prime is 1311210310013. The next prime is 1311210310129. The reversal of 1311210310023 is 3200130121131.

1311210310023 is a `hidden beast` number, since 1 + 311 + 21 + 0 + 310 + 0 + 23 = 666.

It is not a de Polignac number, because 1311210310023 - 28 = 1311210309767 is a prime.

It is a super-2 number, since 2×13112103100232 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1311210309978 and 1311210310005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311210310013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46892023 + ... + 46919976.

It is an arithmetic number, because the mean of its divisors is an integer number (157932502000).

Almost surely, 21311210310023 is an apocalyptic number.

1311210310023 is a deficient number, since it is larger than the sum of its proper divisors (583979713977).

1311210310023 is a wasteful number, since it uses less digits than its factorization.

1311210310023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93813558 (or 93813555 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1311210310023 its reverse (3200130121131), we get a palindrome (4511340431154).

The spelling of 1311210310023 in words is "one trillion, three hundred eleven billion, two hundred ten million, three hundred ten thousand, twenty-three".

Divisors: 1 3 9 1553 4659 13977 93811999 281435997 844307991 145690034447 437070103341 1311210310023