20106244631 has 24 divisors (see below), whose sum is σ = 22269945600. Its totient is φ = 18138520400.

The previous prime is 20106244621. The next prime is 20106244637. The reversal of 20106244631 is 13644260102.

It is not a de Polignac number, because 20106244631 - 2¹⁰ = 20106243607 is a prime.

It is a super-2 number, since 2×20106244631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20106244594 and 20106244603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20106244637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19730840 + ... + 19731858.

It is an arithmetic number, because the mean of its divisors is an integer number (927914400).

Almost surely, 2^20106244631 is an apocalyptic number.

20106244631 is a deficient number, since it is larger than the sum of its proper divisors (2163700969).

20106244631 is a wasteful number, since it uses less digits than its factorization.

20106244631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131 (or 2120 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 20106244631 in words is "twenty billion, one hundred six million, two hundred forty-four thousand, six hundred thirty-one".