19835580131 has 2 divisors, whose sum is σ = 19835580132. Its totient is φ = 19835580130.

The previous prime is 19835580103. The next prime is 19835580139. The reversal of 19835580131 is 13108553891.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19835580131 is a prime.

It is a super-2 number, since 2×19835580131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19835580139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9917790065 + 9917790066.

It is an arithmetic number, because the mean of its divisors is an integer number (9917790066).

Almost surely, 2^19835580131 is an apocalyptic number.

19835580131 is a deficient number, since it is larger than the sum of its proper divisors (1).

19835580131 is an equidigital number, since it uses as much as digits as its factorization.

19835580131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 44.

The spelling of 19835580131 in words is "nineteen billion, eight hundred thirty-five million, five hundred eighty thousand, one hundred thirty-one".