20211310113 has 16 divisors (see below), whose sum is σ = 27110905920. Its totient is φ = 13393027584.

The previous prime is 20211310109. The next prime is 20211310117. The reversal of 20211310113 is 31101311202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20211310109) and next prime (20211310117).

It is not a de Polignac number, because 20211310113 - 2² = 20211310109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20211310092 and 20211310101.

It is not an unprimeable number, because it can be changed into a prime (20211310117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1449945 + ... + 1463817.

It is an arithmetic number, because the mean of its divisors is an integer number (1694431620).

Almost surely, 2^20211310113 is an apocalyptic number.

It is an amenable number.

20211310113 is a deficient number, since it is larger than the sum of its proper divisors (6899595807).

20211310113 is a wasteful number, since it uses less digits than its factorization.

20211310113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16768.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 20211310113 its reverse (31101311202), we get a palindrome (51312621315).

It can be divided in two parts, 202113 and 10113, that added together give a triangular number (212226 = T₆₅₁).

The spelling of 20211310113 in words is "twenty billion, two hundred eleven million, three hundred ten thousand, one hundred thirteen".