1319968131 has 4 divisors (see below), whose sum is σ = 1759957512. Its totient is φ = 879978752.

The previous prime is 1319968129. The next prime is 1319968151. The reversal of 1319968131 is 1318699131.

1319968131 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1319968131 - 2¹ = 1319968129 is a prime.

It is a super-2 number, since 2×1319968131² = 3484631733711266322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1319968121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219994686 + ... + 219994691.

It is an arithmetic number, because the mean of its divisors is an integer number (439989378).

Almost surely, 2^1319968131 is an apocalyptic number.

1319968131 is a deficient number, since it is larger than the sum of its proper divisors (439989381).

1319968131 is an equidigital number, since it uses as much as digits as its factorization.

1319968131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439989380.

The product of its digits is 34992, while the sum is 42.

The square root of 1319968131 is about 36331.3656638448. The cubic root of 1319968131 is about 1096.9524823700.

The spelling of 1319968131 in words is "one billion, three hundred nineteen million, nine hundred sixty-eight thousand, one hundred thirty-one".