123211331010 has 32 divisors (see below), whose sum is σ = 328563550080. Its totient is φ = 32856354864.

The previous prime is 123211331003. The next prime is 123211331021. The reversal of 123211331010 is 10133112321.

123211331010 is a `hidden beast` number, since 1 + 2 + 321 + 1 + 331 + 0 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228168862 + ... + 228169401.

It is an arithmetic number, because the mean of its divisors is an integer number (10267610940).

Almost surely, 2^123211331010 is an apocalyptic number.

123211331010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123211331010 is an abundant number, since it is smaller than the sum of its proper divisors (205352219070).

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

123211331010 is a wasteful number, since it uses less digits than its factorization.

123211331010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456338279 (or 456338273 counting only the distinct ones).

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

Adding to 123211331010 its reverse (10133112321), we get a palindrome (133344443331).

The spelling of 123211331010 in words is "one hundred twenty-three billion, two hundred eleven million, three hundred thirty-one thousand, ten".