312133231232230 has 16 divisors (see below), whose sum is σ = 563634831610944. Its totient is φ = 124454400183360.

The previous prime is 312133231232197. The next prime is 312133231232231. The reversal of 312133231232230 is 32232132331213.

It is a junction number, because it is equal to n+sod(n) for n = 312133231232192 and 312133231232201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312133231232231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49861535406 + ... + 49861541665.

It is an arithmetic number, because the mean of its divisors is an integer number (35227176975684).

Almost surely, 2^{312133231232230} is an apocalyptic number.

312133231232230 is a deficient number, since it is larger than the sum of its proper divisors (251501600378714).

312133231232230 is a wasteful number, since it uses less digits than its factorization.

312133231232230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99723077391.

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 312133231232230 its reverse (32232132331213), we get a palindrome (344365363563443).

The spelling of 312133231232230 in words is "three hundred twelve trillion, one hundred thirty-three billion, two hundred thirty-one million, two hundred thirty-two thousand, two hundred thirty".