20312630443402 has 16 divisors (see below), whose sum is σ = 33241902724800. Its totient is φ = 9232165807840.

The previous prime is 20312630443393. The next prime is 20312630443411. The reversal of 20312630443402 is 20434403621302.

It is an interprime number because it is at equal distance from previous prime (20312630443393) and next prime (20312630443411).

It is a super-2 number, since 2×20312630443402² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42156502 + ... + 42635617.

It is an arithmetic number, because the mean of its divisors is an integer number (2077618920300).

Almost surely, 2^{20312630443402} is an apocalyptic number.

20312630443402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20312630443402 is a deficient number, since it is larger than the sum of its proper divisors (12929272281398).

20312630443402 is a wasteful number, since it uses less digits than its factorization.

20312630443402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84803021.

The product of its (nonzero) digits is 82944, while the sum is 34.

The spelling of 20312630443402 in words is "twenty trillion, three hundred twelve billion, six hundred thirty million, four hundred forty-three thousand, four hundred two".