213131023110 has 24 divisors (see below), whose sum is σ = 554140660320. Its totient is φ = 56834939472.

The previous prime is 213131023097. The next prime is 213131023123. The reversal of 213131023110 is 11320131312.

213131023110 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (213131023097) and next prime (213131023123).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1184061150 + ... + 1184061329.

It is an arithmetic number, because the mean of its divisors is an integer number (23089194180).

Almost surely, 2^213131023110 is an apocalyptic number.

213131023110 is an abundant number, since it is smaller than the sum of its proper divisors (341009637210).

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

213131023110 is a wasteful number, since it uses less digits than its factorization.

213131023110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368122492 (or 2368122489 counting only the distinct ones).

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

Adding to 213131023110 its reverse (11320131312), we get a palindrome (224451154422).

The spelling of 213131023110 in words is "two hundred thirteen billion, one hundred thirty-one million, twenty-three thousand, one hundred ten".