210031323123012 has 24 divisors (see below), whose sum is σ = 496786417251936. Its totient is φ = 69051393903168.

The previous prime is 210031323123007. The next prime is 210031323123019. The reversal of 210031323123012 is 210321323130012.

It is a super-2 number, since 2×210031323123012² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (210031323123019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119880891318 + ... + 119880893069.

It is an arithmetic number, because the mean of its divisors is an integer number (20699434052164).

Almost surely, 2^{210031323123012} is an apocalyptic number.

It is an amenable number.

210031323123012 is an abundant number, since it is smaller than the sum of its proper divisors (286755094128924).

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

210031323123012 is a wasteful number, since it uses less digits than its factorization.

210031323123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239761784467 (or 239761784465 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 210031323123012 its reverse (210321323130012), we get a palindrome (420352646253024).

The spelling of 210031323123012 in words is "two hundred ten trillion, thirty-one billion, three hundred twenty-three million, one hundred twenty-three thousand, twelve".