20040557333131 has 2 divisors, whose sum is σ = 20040557333132. Its totient is φ = 20040557333130.

The previous prime is 20040557333101. The next prime is 20040557333149. The reversal of 20040557333131 is 13133375504002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20040557333131 - 2¹⁵ = 20040557300363 is a prime.

It is a super-2 number, since 2×20040557333131² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20040557333101) 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 as a sum of consecutive naturals, namely, 10020278666565 + 10020278666566.

It is an arithmetic number, because the mean of its divisors is an integer number (10020278666566).

Almost surely, 2^{20040557333131} is an apocalyptic number.

20040557333131 is a deficient number, since it is larger than the sum of its proper divisors (1).

20040557333131 is an equidigital number, since it uses as much as digits as its factorization.

20040557333131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 37.

The spelling of 20040557333131 in words is "twenty trillion, forty billion, five hundred fifty-seven million, three hundred thirty-three thousand, one hundred thirty-one".