21002323432002 has 32 divisors (see below), whose sum is σ = 46687840776000. Its totient is φ = 6244258537920.

The previous prime is 21002323432001. The next prime is 21002323432003. The reversal of 21002323432002 is 20023432320012.

It is an interprime number because it is at equal distance from previous prime (21002323432001) and next prime (21002323432003).

It is not an unprimeable number, because it can be changed into a prime (21002323432001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3002043877 + ... + 3002050872.

It is an arithmetic number, because the mean of its divisors is an integer number (1458995024250).

Almost surely, 2^{21002323432002} is an apocalyptic number.

21002323432002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21002323432002 is an abundant number, since it is smaller than the sum of its proper divisors (25685517343998).

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

21002323432002 is a wasteful number, since it uses less digits than its factorization.

21002323432002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6004094818.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 21002323432002 its reverse (20023432320012), we get a palindrome (41025755752014).

The spelling of 21002323432002 in words is "twenty-one trillion, two billion, three hundred twenty-three million, four hundred thirty-two thousand, two".