315142021345 has 32 divisors (see below), whose sum is σ = 404762307840. Its totient is φ = 235022135040.

The previous prime is 315142021321. The next prime is 315142021351. The reversal of 315142021345 is 543120241513.

It is not a de Polignac number, because 315142021345 - 2⁷ = 315142021217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 558562 + ... + 970708.

It is an arithmetic number, because the mean of its divisors is an integer number (12648822120).

Almost surely, 2^315142021345 is an apocalyptic number.

It is an amenable number.

315142021345 is a deficient number, since it is larger than the sum of its proper divisors (89620286495).

315142021345 is a wasteful number, since it uses less digits than its factorization.

315142021345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412345.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 315142021345 its reverse (543120241513), we get a palindrome (858262262858).

The spelling of 315142021345 in words is "three hundred fifteen billion, one hundred forty-two million, twenty-one thousand, three hundred forty-five".