20123210021332 has 48 divisors (see below), whose sum is σ = 38793450810240. Its totient is φ = 9057673584000.

The previous prime is 20123210021293. The next prime is 20123210021351. The reversal of 20123210021332 is 23312001232102.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 2671107 + ... + 6883402.

It is an arithmetic number, because the mean of its divisors is an integer number (808196891880).

Almost surely, 2^{20123210021332} is an apocalyptic number.

20123210021332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20123210021332 is a deficient number, since it is larger than the sum of its proper divisors (18670240788908).

20123210021332 is a wasteful number, since it uses less digits than its factorization.

20123210021332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9554992 (or 9554990 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20123210021332 its reverse (23312001232102), we get a palindrome (43435211253434).

The spelling of 20123210021332 in words is "twenty trillion, one hundred twenty-three billion, two hundred ten million, twenty-one thousand, three hundred thirty-two".