231311131214 has 32 divisors (see below), whose sum is σ = 362383896576. Its totient is φ = 110609012160.

The previous prime is 231311131153. The next prime is 231311131223. The reversal of 231311131214 is 412131113132.

231311131214 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×231311131214² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231311131214.

It is a congruent number.

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, 3072794 + ... + 3147170.

It is an arithmetic number, because the mean of its divisors is an integer number (11324496768).

Almost surely, 2^231311131214 is an apocalyptic number.

231311131214 is a deficient number, since it is larger than the sum of its proper divisors (131072765362).

231311131214 is a wasteful number, since it uses less digits than its factorization.

231311131214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75000.

The product of its digits is 432, while the sum is 23.

Adding to 231311131214 its reverse (412131113132), we get a palindrome (643442244346).

The spelling of 231311131214 in words is "two hundred thirty-one billion, three hundred eleven million, one hundred thirty-one thousand, two hundred fourteen".