31055021133345 has 48 divisors (see below), whose sum is σ = 58739769646272. Its totient is φ = 15052480490880.

The previous prime is 31055021133337. The next prime is 31055021133449. The reversal of 31055021133345 is 54333112055013.

31055021133345 is a `hidden beast` number, since 3 + 1 + 0 + 5 + 502 + 113 + 3 + 34 + 5 = 666.

It is not a de Polignac number, because 31055021133345 - 2³ = 31055021133337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7715422 + ... + 11028951.

It is an arithmetic number, because the mean of its divisors is an integer number (1223745200964).

Almost surely, 2^{31055021133345} is an apocalyptic number.

It is an amenable number.

31055021133345 is a deficient number, since it is larger than the sum of its proper divisors (27684748512927).

31055021133345 is a wasteful number, since it uses less digits than its factorization.

31055021133345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18747742 (or 18747739 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

Adding to 31055021133345 its reverse (54333112055013), we get a palindrome (85388133188358).

The spelling of 31055021133345 in words is "thirty-one trillion, fifty-five billion, twenty-one million, one hundred thirty-three thousand, three hundred forty-five".