231213121212110 has 16 divisors (see below), whose sum is σ = 416184030164016. Its totient is φ = 92485156933248.

The previous prime is 231213121212091. The next prime is 231213121212131. The reversal of 231213121212110 is 11212121312132.

It is a super-2 number, since 2×231213121212110² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322172 + ... + 21506511.

It is an arithmetic number, because the mean of its divisors is an integer number (26011501885251).

Almost surely, 2^{231213121212110} is an apocalyptic number.

231213121212110 is a deficient number, since it is larger than the sum of its proper divisors (184970908951906).

231213121212110 is a wasteful number, since it uses less digits than its factorization.

231213121212110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22887907.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 231213121212110 its reverse (11212121312132), we get a palindrome (242425242524242).

The spelling of 231213121212110 in words is "two hundred thirty-one trillion, two hundred thirteen billion, one hundred twenty-one million, two hundred twelve thousand, one hundred ten".