312212233130 has 64 divisors (see below), whose sum is σ = 655889806080. Its totient is φ = 104790067200.

The previous prime is 312212233079. The next prime is 312212233139. The reversal of 312212233130 is 31332212213.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 312212233096 and 312212233105.

It is not an unprimeable number, because it can be changed into a prime (312212233139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 727706 + ... + 1074234.

It is an arithmetic number, because the mean of its divisors is an integer number (10248278220).

Almost surely, 2^312212233130 is an apocalyptic number.

312212233130 is an abundant number, since it is smaller than the sum of its proper divisors (343677572950).

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

312212233130 is a wasteful number, since it uses less digits than its factorization.

312212233130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346815.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 312212233130 its reverse (31332212213), we get a palindrome (343544445343).

The spelling of 312212233130 in words is "three hundred twelve billion, two hundred twelve million, two hundred thirty-three thousand, one hundred thirty".