31112204355 has 32 divisors (see below), whose sum is σ = 55827532800. Its totient is φ = 16438091616.

The previous prime is 31112204269. The next prime is 31112204401. The reversal of 31112204355 is 55340221113.

31112204355 is a `hidden beast` number, since 3 + 1 + 1 + 1 + 220 + 435 + 5 = 666.

It is not a de Polignac number, because 31112204355 - 2⁸ = 31112204099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 1062475 + ... + 1091364.

It is an arithmetic number, because the mean of its divisors is an integer number (1744610400).

Almost surely, 2^31112204355 is an apocalyptic number.

31112204355 is a deficient number, since it is larger than the sum of its proper divisors (24715328445).

31112204355 is a wasteful number, since it uses less digits than its factorization.

31112204355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153960 (or 2153954 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 31112204355 its reverse (55340221113), we get a palindrome (86452425468).

The spelling of 31112204355 in words is "thirty-one billion, one hundred twelve million, two hundred four thousand, three hundred fifty-five".