21322013113020 has 48 divisors (see below), whose sum is σ = 60031480043808. Its totient is φ = 5654456513280.

The previous prime is 21322013112989. The next prime is 21322013113031. The reversal of 21322013113020 is 2031131022312.

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, 981665619 + ... + 981687338.

It is an arithmetic number, because the mean of its divisors is an integer number (1250655834246).

Almost surely, 2^{21322013113020} is an apocalyptic number.

21322013113020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21322013113020 is an abundant number, since it is smaller than the sum of its proper divisors (38709466930788).

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

21322013113020 is a wasteful number, since it uses less digits than its factorization.

21322013113020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963353150 (or 1963353148 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21322013113020 its reverse (2031131022312), we get a palindrome (23353144135332).

The spelling of 21322013113020 in words is "twenty-one trillion, three hundred twenty-two billion, thirteen million, one hundred thirteen thousand, twenty".