212311110023010 has 48 divisors (see below), whose sum is σ = 566928045151416. Its totient is φ = 55086125842944.

The previous prime is 212311110022969. The next prime is 212311110023021. The reversal of 212311110023010 is 10320011113212.

212311110023010 is a `hidden beast` number, since 2 + 1 + 2 + 311 + 110 + 0 + 230 + 10 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 195487962853401 + 16823147169609 = 13981701^2 + 4101603^2 .

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 23 ways as a sum of consecutive naturals, for example, 31878541719 + ... + 31878548378.

Almost surely, 2^{212311110023010} is an apocalyptic number.

212311110023010 is an abundant number, since it is smaller than the sum of its proper divisors (354616935128406).

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

212311110023010 is a wasteful number, since it uses less digits than its factorization.

212311110023010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63757090147 (or 63757090144 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 212311110023010 its reverse (10320011113212), we get a palindrome (222631121136222).

The spelling of 212311110023010 in words is "two hundred twelve trillion, three hundred eleven billion, one hundred ten million, twenty-three thousand, ten".