420561312315 has 16 divisors (see below), whose sum is σ = 682375539456. Its totient is φ = 221140220000.

The previous prime is 420561312299. The next prime is 420561312389. The reversal of 420561312315 is 513213165024.

It is not a de Polignac number, because 420561312315 - 2⁴ = 420561312299 is a prime.

It is a super-2 number, since 2×420561312315² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197445561 + ... + 197447690.

It is an arithmetic number, because the mean of its divisors is an integer number (42648471216).

Almost surely, 2^420561312315 is an apocalyptic number.

420561312315 is a deficient number, since it is larger than the sum of its proper divisors (261814227141).

420561312315 is a wasteful number, since it uses less digits than its factorization.

420561312315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394893330.

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 420561312315 its reverse (513213165024), we get a palindrome (933774477339).

The spelling of 420561312315 in words is "four hundred twenty billion, five hundred sixty-one million, three hundred twelve thousand, three hundred fifteen".