31432019519 has 2 divisors, whose sum is σ = 31432019520. Its totient is φ = 31432019518.

The previous prime is 31432019513. The next prime is 31432019533. The reversal of 31432019519 is 91591023413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31432019519 - 2⁸ = 31432019263 is a prime.

It is a super-2 number, since 2×31432019519² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31432019513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15716009759 + 15716009760.

It is an arithmetic number, because the mean of its divisors is an integer number (15716009760).

Almost surely, 2^31432019519 is an apocalyptic number.

31432019519 is a deficient number, since it is larger than the sum of its proper divisors (1).

31432019519 is an equidigital number, since it uses as much as digits as its factorization.

31432019519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 38.

The spelling of 31432019519 in words is "thirty-one billion, four hundred thirty-two million, nineteen thousand, five hundred nineteen".