312100520030 has 128 divisors (see below), whose sum is σ = 628819148160. Its totient is φ = 110780006400.

The previous prime is 312100520029. The next prime is 312100520033. The reversal of 312100520030 is 30025001213.

It is a junction number, because it is equal to n+sod(n) for n = 312100519990 and 312100520008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312100520033) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 309316166 + ... + 309317174.

It is an arithmetic number, because the mean of its divisors is an integer number (4912649595).

Almost surely, 2^312100520030 is an apocalyptic number.

312100520030 is an abundant number, since it is smaller than the sum of its proper divisors (316718628130).

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

312100520030 is a wasteful number, since it uses less digits than its factorization.

312100520030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774.

The product of its (nonzero) digits is 180, while the sum is 17.

Adding to 312100520030 its reverse (30025001213), we get a palindrome (342125521243).

The spelling of 312100520030 in words is "three hundred twelve billion, one hundred million, five hundred twenty thousand, thirty".