231330221412 has 24 divisors (see below), whose sum is σ = 541022896512. Its totient is φ = 76931162400.

The previous prime is 231330221389. The next prime is 231330221453. The reversal of 231330221412 is 214122033132.

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, 22358539 + ... + 22368882.

It is an arithmetic number, because the mean of its divisors is an integer number (22542620688).

Almost surely, 2^231330221412 is an apocalyptic number.

It is an amenable number.

231330221412 is an abundant number, since it is smaller than the sum of its proper divisors (309692675100).

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

231330221412 is a wasteful number, since it uses less digits than its factorization.

231330221412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44727859 (or 44727857 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 231330221412 its reverse (214122033132), we get a palindrome (445452254544).

The spelling of 231330221412 in words is "two hundred thirty-one billion, three hundred thirty million, two hundred twenty-one thousand, four hundred twelve".