20122644983 has 32 divisors (see below), whose sum is σ = 24716165760. Its totient is φ = 15989944320.

The previous prime is 20122644967. The next prime is 20122645013. The reversal of 20122644983 is 38944622102.

It is not a de Polignac number, because 20122644983 - 2⁴ = 20122644967 is a prime.

It is a super-2 number, since 2×20122644983² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20122644983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122640983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12412913 + ... + 12414533.

It is an arithmetic number, because the mean of its divisors is an integer number (772380180).

Almost surely, 2^20122644983 is an apocalyptic number.

20122644983 is a deficient number, since it is larger than the sum of its proper divisors (4593520777).

20122644983 is a wasteful number, since it uses less digits than its factorization.

20122644983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147.

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 20122644983 in words is "twenty billion, one hundred twenty-two million, six hundred forty-four thousand, nine hundred eighty-three".