31356104405511 has 16 divisors (see below), whose sum is σ = 42684072488960. Its totient is φ = 20469176413920.

The previous prime is 31356104405501. The next prime is 31356104405539. The reversal of 31356104405511 is 11550440165313.

It is not a de Polignac number, because 31356104405511 - 2⁷ = 31356104405383 is a prime.

It is a super-2 number, since 2×31356104405511² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31356104405511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31356104405501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384140431 + ... + 384222048.

It is an arithmetic number, because the mean of its divisors is an integer number (2667754530560).

Almost surely, 2^{31356104405511} is an apocalyptic number.

31356104405511 is a deficient number, since it is larger than the sum of its proper divisors (11327968083449).

31356104405511 is a wasteful number, since it uses less digits than its factorization.

31356104405511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768362766.

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 31356104405511 in words is "thirty-one trillion, three hundred fifty-six billion, one hundred four million, four hundred five thousand, five hundred eleven".