21231123111202 has 8 divisors (see below), whose sum is σ = 32097445963776. Its totient is φ = 10531974456612.

The previous prime is 21231123111199. The next prime is 21231123111259. The reversal of 21231123111202 is 20211132113212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41793549178 + ... + 41793549685.

It is an arithmetic number, because the mean of its divisors is an integer number (4012180745472).

Almost surely, 2^{21231123111202} is an apocalyptic number.

21231123111202 is a deficient number, since it is larger than the sum of its proper divisors (10866322852574).

21231123111202 is a wasteful number, since it uses less digits than its factorization.

21231123111202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83587098992.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 21231123111202 its reverse (20211132113212), we get a palindrome (41442255224414).

The spelling of 21231123111202 in words is "twenty-one trillion, two hundred thirty-one billion, one hundred twenty-three million, one hundred eleven thousand, two hundred two".