63213431640331 has 16 divisors (see below), whose sum is σ = 74738268426240. Its totient is φ = 52312340334240.

The previous prime is 63213431640323. The next prime is 63213431640397. The reversal of 63213431640331 is 13304613431236.

It is not a de Polignac number, because 63213431640331 - 2³ = 63213431640323 is a prime.

It is a super-2 number, since 2×63213431640331² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63213431640031) 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, 1822515 + ... + 11390716.

It is an arithmetic number, because the mean of its divisors is an integer number (4671141776640).

Almost surely, 2^{63213431640331} is an apocalyptic number.

63213431640331 is a deficient number, since it is larger than the sum of its proper divisors (11524836785909).

63213431640331 is a wasteful number, since it uses less digits than its factorization.

63213431640331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13236834.

The product of its (nonzero) digits is 279936, while the sum is 40.

The spelling of 63213431640331 in words is "sixty-three trillion, two hundred thirteen billion, four hundred thirty-one million, six hundred forty thousand, three hundred thirty-one".