312021321103135 has 32 divisors (see below), whose sum is σ = 435991115331072. Its totient is φ = 209919439466880.

The previous prime is 312021321103127. The next prime is 312021321103139. The reversal of 312021321103135 is 531301123120213.

It is not a de Polignac number, because 312021321103135 - 2³ = 312021321103127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312021321103139) 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, 512542080 + ... + 513150490.

It is an arithmetic number, because the mean of its divisors is an integer number (13624722354096).

Almost surely, 2^{312021321103135} is an apocalyptic number.

312021321103135 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

312021321103135 is a deficient number, since it is larger than the sum of its proper divisors (123969794227937).

312021321103135 is a wasteful number, since it uses less digits than its factorization.

312021321103135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884943.

The product of its (nonzero) digits is 3240, while the sum is 28.

Adding to 312021321103135 its reverse (531301123120213), we get a palindrome (843322444223348).

The spelling of 312021321103135 in words is "three hundred twelve trillion, twenty-one billion, three hundred twenty-one million, one hundred three thousand, one hundred thirty-five".