21320131022 has 16 divisors (see below), whose sum is σ = 33070505472. Its totient is φ = 10297851960.

The previous prime is 21320131013. The next prime is 21320131039. The reversal of 21320131022 is 22013102312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270488 + ... + 340299.

It is an arithmetic number, because the mean of its divisors is an integer number (2066906592).

Almost surely, 2^21320131022 is an apocalyptic number.

21320131022 is a deficient number, since it is larger than the sum of its proper divisors (11750374450).

21320131022 is a wasteful number, since it uses less digits than its factorization.

21320131022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611383.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21320131022 its reverse (22013102312), we get a palindrome (43333233334).

The spelling of 21320131022 in words is "twenty-one billion, three hundred twenty million, one hundred thirty-one thousand, twenty-two".