231232311455212 has 12 divisors (see below), whose sum is σ = 428459871225960. Its totient is φ = 108815205390656.

The previous prime is 231232311455149. The next prime is 231232311455267. The reversal of 231232311455212 is 212554113232132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1700237584162 + ... + 1700237584297.

It is an arithmetic number, because the mean of its divisors is an integer number (35704989268830).

Almost surely, 2^{231232311455212} is an apocalyptic number.

It is an amenable number.

231232311455212 is a deficient number, since it is larger than the sum of its proper divisors (197227559770748).

231232311455212 is a wasteful number, since it uses less digits than its factorization.

231232311455212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400475168480 (or 3400475168478 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

Adding to 231232311455212 its reverse (212554113232132), we get a palindrome (443786424687344).

The spelling of 231232311455212 in words is "two hundred thirty-one trillion, two hundred thirty-two billion, three hundred eleven million, four hundred fifty-five thousand, two hundred twelve".