20211313223031 has 8 divisors (see below), whose sum is σ = 30798191577984. Its totient is φ = 11549321841720.

The previous prime is 20211313223011. The next prime is 20211313223069. The reversal of 20211313223031 is 13032231311202.

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

It is not a de Polignac number, because 20211313223031 - 2²¹ = 20211311125879 is a prime.

It is a super-2 number, since 2×20211313223031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20211313222992 and 20211313223010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211313223011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481221743385 + ... + 481221743426.

It is an arithmetic number, because the mean of its divisors is an integer number (3849773947248).

Almost surely, 2^{20211313223031} is an apocalyptic number.

20211313223031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20211313223031 is a deficient number, since it is larger than the sum of its proper divisors (10586878354953).

20211313223031 is an equidigital number, since it uses as much as digits as its factorization.

20211313223031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962443486821.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 20211313223031 its reverse (13032231311202), we get a palindrome (33243544534233).

The spelling of 20211313223031 in words is "twenty trillion, two hundred eleven billion, three hundred thirteen million, two hundred twenty-three thousand, thirty-one".