19503828131 has 2 divisors, whose sum is σ = 19503828132. Its totient is φ = 19503828130.

The previous prime is 19503828089. The next prime is 19503828209. The reversal of 19503828131 is 13182830591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19503828131 - 2⁶ = 19503828067 is a prime.

It is a super-2 number, since 2×19503828131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19503822131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9751914065 + 9751914066.

It is an arithmetic number, because the mean of its divisors is an integer number (9751914066).

Almost surely, 2^19503828131 is an apocalyptic number.

19503828131 is a deficient number, since it is larger than the sum of its proper divisors (1).

19503828131 is an equidigital number, since it uses as much as digits as its factorization.

19503828131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 19503828131 in words is "nineteen billion, five hundred three million, eight hundred twenty-eight thousand, one hundred thirty-one".