312130621401 has 16 divisors (see below), whose sum is σ = 421922437440. Its totient is φ = 205213582080.

The previous prime is 312130621399. The next prime is 312130621469. The reversal of 312130621401 is 104126031213.

It is a happy number.

It is not a de Polignac number, because 312130621401 - 2¹ = 312130621399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312130629401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2003445 + ... + 2153613.

It is an arithmetic number, because the mean of its divisors is an integer number (26370152340).

Almost surely, 2^312130621401 is an apocalyptic number.

It is an amenable number.

312130621401 is a deficient number, since it is larger than the sum of its proper divisors (109791816039).

312130621401 is a wasteful number, since it uses less digits than its factorization.

312130621401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159736.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 312130621401 its reverse (104126031213), we get a palindrome (416256652614).

The spelling of 312130621401 in words is "three hundred twelve billion, one hundred thirty million, six hundred twenty-one thousand, four hundred one".