20312433421302 has 64 divisors (see below), whose sum is σ = 44439238137600. Its totient is φ = 6138452436480.

The previous prime is 20312433421283. The next prime is 20312433421339.

It is a happy number.

20312433421302 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 20312433421302.

It is a congruent number.

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, 309565474 + ... + 309631082.

It is an arithmetic number, because the mean of its divisors is an integer number (694363095900).

Almost surely, 2^{20312433421302} is an apocalyptic number.

20312433421302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20312433421302 is an abundant number, since it is smaller than the sum of its proper divisors (24126804716298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20312433421302 is a wasteful number, since it uses less digits than its factorization.

20312433421302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78381.

The product of its (nonzero) digits is 20736, while the sum is 30.

It can be divided in two parts, 2031243 and 3421302, that added together give a palindrome (5452545).

The spelling of 20312433421302 in words is "twenty trillion, three hundred twelve billion, four hundred thirty-three million, four hundred twenty-one thousand, three hundred two".