312540521301 has 16 divisors (see below), whose sum is σ = 466354100800. Its totient is φ = 206861349744.

The previous prime is 312540521243. The next prime is 312540521309. The reversal of 312540521301 is 103125045213.

312540521301 is a `hidden beast` number, since 3 + 125 + 405 + 2 + 130 + 1 = 666.

It is not a de Polignac number, because 312540521301 - 2¹¹ = 312540519253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312540521309) 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, 41635006 + ... + 41642511.

It is an arithmetic number, because the mean of its divisors is an integer number (29147131300).

Almost surely, 2^312540521301 is an apocalyptic number.

It is an amenable number.

312540521301 is a deficient number, since it is larger than the sum of its proper divisors (153813579499).

312540521301 is a wasteful number, since it uses less digits than its factorization.

312540521301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83277665 (or 83277659 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 312540521301 its reverse (103125045213), we get a palindrome (415665566514).

The spelling of 312540521301 in words is "three hundred twelve billion, five hundred forty million, five hundred twenty-one thousand, three hundred one".