21233102402 has 16 divisors (see below), whose sum is σ = 31974739200. Its totient is φ = 10574884320.

The previous prime is 21233102389. The next prime is 21233102417. The reversal of 21233102402 is 20420133212.

It is a super-2 number, since 2×21233102402² (a number of 21 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, 2084999 + ... + 2095157.

It is an arithmetic number, because the mean of its divisors is an integer number (1998421200).

Almost surely, 2^21233102402 is an apocalyptic number.

21233102402 is a deficient number, since it is larger than the sum of its proper divisors (10741636798).

21233102402 is a wasteful number, since it uses less digits than its factorization.

21233102402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14161.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21233102402 its reverse (20420133212), we get a palindrome (41653235614).

The spelling of 21233102402 in words is "twenty-one billion, two hundred thirty-three million, one hundred two thousand, four hundred two".