21431113022 has 16 divisors (see below), whose sum is σ = 35072116992. Its totient is φ = 9740575320.

The previous prime is 21431112961. The next prime is 21431113049. The reversal of 21431113022 is 22031113412.

It is a junction number, because it is equal to n+sod(n) for n = 21431112985 and 21431113003.

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, 270833 + ... + 340899.

It is an arithmetic number, because the mean of its divisors is an integer number (2192007312).

Almost surely, 2^21431113022 is an apocalyptic number.

21431113022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21431113022 is a deficient number, since it is larger than the sum of its proper divisors (13641003970).

21431113022 is a wasteful number, since it uses less digits than its factorization.

21431113022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83983.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21431113022 its reverse (22031113412), we get a palindrome (43462226434).

The spelling of 21431113022 in words is "twenty-one billion, four hundred thirty-one million, one hundred thirteen thousand, twenty-two".