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1311110021010 = 23543703667367
BaseRepresentation
bin10011000101000100001…
…111110011111110010010
311122100012111210222220210
4103011010033303332102
5132440123131133020
62442152101544550
7163503346204236
oct23050417637622
94570174728823
101311110021010
11466047476439
12192128115156
1396838a6387a
144765acd85c6
15241894983e0
hex131443f3f92

1311110021010 has 16 divisors (see below), whose sum is σ = 3146664050496. Its totient is φ = 349629338928.

The previous prime is 1311110020981. The next prime is 1311110021069. The reversal of 1311110021010 is 101200111131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21851833654 + ... + 21851833713.

It is an arithmetic number, because the mean of its divisors is an integer number (196666503156).

Almost surely, 21311110021010 is an apocalyptic number.

1311110021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311110021010 is an abundant number, since it is smaller than the sum of its proper divisors (1835554029486).

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

1311110021010 is a wasteful number, since it uses less digits than its factorization.

1311110021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43703667377.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 1311110021010 its reverse (101200111131), we get a palindrome (1412310132141).

The spelling of 1311110021010 in words is "one trillion, three hundred eleven billion, one hundred ten million, twenty-one thousand, ten".

Divisors: 1 2 3 5 6 10 15 30 43703667367 87407334734 131111002101 218518336835 262222004202 437036673670 655555010505 1311110021010