31025200123134 has 80 divisors (see below), whose sum is σ = 79589921913216. Its totient is φ = 8848818464400.

The previous prime is 31025200123123. The next prime is 31025200123189. The reversal of 31025200123134 is 43132100252013.

31025200123134 is a `hidden beast` number, since 3 + 1 + 0 + 2 + 520 + 0 + 1 + 2 + 3 + 134 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 31025200123098 and 31025200123107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23309652 + ... + 24604679.

Almost surely, 2^{31025200123134} is an apocalyptic number.

31025200123134 is an abundant number, since it is smaller than the sum of its proper divisors (48564721790082).

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

31025200123134 is a wasteful number, since it uses less digits than its factorization.

31025200123134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47914923 (or 47914914 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 31025200123134 its reverse (43132100252013), we get a palindrome (74157300375147).

The spelling of 31025200123134 in words is "thirty-one trillion, twenty-five billion, two hundred million, one hundred twenty-three thousand, one hundred thirty-four".