20204404450131 has 64 divisors (see below), whose sum is σ = 30898123407360. Its totient is φ = 11624176080000.

The previous prime is 20204404450103. The next prime is 20204404450159. The reversal of 20204404450131 is 13105440440202.

It is an interprime number because it is at equal distance from previous prime (20204404450103) and next prime (20204404450159).

It is not a de Polignac number, because 20204404450131 - 2¹³ = 20204404441939 is a prime.

It is a super-2 number, since 2×20204404450131² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20204404458131) 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 63 ways as a sum of consecutive naturals, for example, 122434566 + ... + 122599476.

It is an arithmetic number, because the mean of its divisors is an integer number (482783178240).

Almost surely, 2^{20204404450131} is an apocalyptic number.

20204404450131 is a deficient number, since it is larger than the sum of its proper divisors (10693718957229).

20204404450131 is a wasteful number, since it uses less digits than its factorization.

20204404450131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166168.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 20204404450131 its reverse (13105440440202), we get a palindrome (33309844890333).

The spelling of 20204404450131 in words is "twenty trillion, two hundred four billion, four hundred four million, four hundred fifty thousand, one hundred thirty-one".