231122012 has 12 divisors (see below), whose sum is σ = 441233016. Its totient is φ = 105055440.

The previous prime is 231121973. The next prime is 231122027. The reversal of 231122012 is 210221132.

It is a happy number.

231122012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2626343 + ... + 2626430.

It is an arithmetic number, because the mean of its divisors is an integer number (36769418).

Almost surely, 2^231122012 is an apocalyptic number.

231122012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

231122012 is a deficient number, since it is larger than the sum of its proper divisors (210111004).

231122012 is a wasteful number, since it uses less digits than its factorization.

231122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5252788 (or 5252786 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 231122012 is about 15202.6975237949. The cubic root of 231122012 is about 613.6872538562.

Adding to 231122012 its reverse (210221132), we get a palindrome (441343144).

The spelling of 231122012 in words is "two hundred thirty-one million, one hundred twenty-two thousand, twelve".