31355404111000 has 64 divisors (see below), whose sum is σ = 73385572553280. Its totient is φ = 12539780972800.

The previous prime is 31355404110883. The next prime is 31355404111027. The reversal of 31355404111000 is 11140455313.

It is a super-2 number, since 2×31355404111000² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31355404111000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2299797 + ... + 8246203.

It is an arithmetic number, because the mean of its divisors is an integer number (1146649571145).

Almost surely, 2^{31355404111000} is an apocalyptic number.

It is an amenable number.

31355404111000 is an abundant number, since it is smaller than the sum of its proper divisors (42030168442280).

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

31355404111000 is a wasteful number, since it uses less digits than its factorization.

31355404111000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5951701 (or 5951687 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 31355404111000 its reverse (11140455313), we get a palindrome (31366544566313).

The spelling of 31355404111000 in words is "thirty-one trillion, three hundred fifty-five billion, four hundred four million, one hundred eleven thousand".