21303203322402 has 24 divisors (see below), whose sum is σ = 46189376947584. Its totient is φ = 7096077556344.

The previous prime is 21303203322389. The next prime is 21303203322563. The reversal of 21303203322402 is 20422330230312.

21303203322402 is a `hidden beast` number, since 2 + 1 + 3 + 0 + 320 + 332 + 2 + 4 + 0 + 2 = 666.

It is a super-2 number, since 2×21303203322402² (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 11 ways as a sum of consecutive naturals, for example, 415825158 + ... + 415876385.

It is an arithmetic number, because the mean of its divisors is an integer number (1924557372816).

Almost surely, 2^{21303203322402} is an apocalyptic number.

21303203322402 is an abundant number, since it is smaller than the sum of its proper divisors (24886173625182).

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

21303203322402 is a wasteful number, since it uses less digits than its factorization.

21303203322402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831702974 (or 831702971 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 21303203322402 its reverse (20422330230312), we get a palindrome (41725533552714).

The spelling of 21303203322402 in words is "twenty-one trillion, three hundred three billion, two hundred three million, three hundred twenty-two thousand, four hundred two".