210031213031 has 16 divisors (see below), whose sum is σ = 213010207488. Its totient is φ = 207073204800.

The previous prime is 210031212949. The next prime is 210031213043. The reversal of 210031213031 is 130312130012.

It is a cyclic number.

It is not a de Polignac number, because 210031213031 - 2¹⁴ = 210031196647 is a prime.

It is a super-2 number, since 2×210031213031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210031213331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22723571 + ... + 22732811.

It is an arithmetic number, because the mean of its divisors is an integer number (13313137968).

Almost surely, 2^210031213031 is an apocalyptic number.

210031213031 is a deficient number, since it is larger than the sum of its proper divisors (2978994457).

210031213031 is a wasteful number, since it uses less digits than its factorization.

210031213031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10342.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 210031213031 its reverse (130312130012), we get a palindrome (340343343043).

The spelling of 210031213031 in words is "two hundred ten billion, thirty-one million, two hundred thirteen thousand, thirty-one".