21232403202 has 32 divisors (see below), whose sum is σ = 42784193088. Its totient is φ = 7024432896.

The previous prime is 21232403197. The next prime is 21232403207. The reversal of 21232403202 is 20230423212.

It is an interprime number because it is at equal distance from previous prime (21232403197) and next prime (21232403207).

It is not an unprimeable number, because it can be changed into a prime (21232403207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413313 + ... + 461835.

It is an arithmetic number, because the mean of its divisors is an integer number (1337006034).

Almost surely, 2^21232403202 is an apocalyptic number.

21232403202 is an abundant number, since it is smaller than the sum of its proper divisors (21551789886).

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

21232403202 is a wasteful number, since it uses less digits than its factorization.

21232403202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49074.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 21232403202 its reverse (20230423212), we get a palindrome (41462826414).

The spelling of 21232403202 in words is "twenty-one billion, two hundred thirty-two million, four hundred three thousand, two hundred two".