21203232113102 has 32 divisors (see below), whose sum is σ = 34575690627072. Its totient is φ = 9693467781984.

The previous prime is 21203232113083. The next prime is 21203232113113. The reversal of 21203232113102 is 20131123230212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22594583 + ... + 23514285.

It is an arithmetic number, because the mean of its divisors is an integer number (1080490332096).

Almost surely, 2^{21203232113102} is an apocalyptic number.

21203232113102 is a deficient number, since it is larger than the sum of its proper divisors (13372458513970).

21203232113102 is a wasteful number, since it uses less digits than its factorization.

21203232113102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928112.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 21203232113102 its reverse (20131123230212), we get a palindrome (41334355343314).

The spelling of 21203232113102 in words is "twenty-one trillion, two hundred three billion, two hundred thirty-two million, one hundred thirteen thousand, one hundred two".