210031213113 has 32 divisors (see below), whose sum is σ = 321284014080. Its totient is φ = 135466324560.

The previous prime is 210031213109. The next prime is 210031213121. The reversal of 210031213113 is 311312130012.

210031213113 is a `hidden beast` number, since 210 + 0 + 312 + 131 + 13 = 666.

It is not a de Polignac number, because 210031213113 - 2² = 210031213109 is a prime.

It is a super-2 number, since 2×210031213113² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (210031213153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3150120 + ... + 3216102.

It is an arithmetic number, because the mean of its divisors is an integer number (10040125440).

Almost surely, 2^210031213113 is an apocalyptic number.

It is an amenable number.

210031213113 is a deficient number, since it is larger than the sum of its proper divisors (111252800967).

210031213113 is a wasteful number, since it uses less digits than its factorization.

210031213113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69826 (or 69820 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 210031213113 its reverse (311312130012), we get a palindrome (521343343125).

The spelling of 210031213113 in words is "two hundred ten billion, thirty-one million, two hundred thirteen thousand, one hundred thirteen".