1318888131 has 32 divisors (see below), whose sum is σ = 1969304832. Its totient is φ = 778229760.

The previous prime is 1318888111. The next prime is 1318888141.

1318888131 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1318888131 - 2¹⁹ = 1318363843 is a prime.

It is a super-2 number, since 2×1318888131² = 3478931804185346322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1318888111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 499591 + ... + 502223.

It is an arithmetic number, because the mean of its divisors is an integer number (61540776).

Almost surely, 2^1318888131 is an apocalyptic number.

1318888131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1318888131 is a deficient number, since it is larger than the sum of its proper divisors (650416701).

1318888131 is a wasteful number, since it uses less digits than its factorization.

1318888131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3043.

The product of its digits is 36864, while the sum is 42.

The square root of 1318888131 is about 36316.4994320763. The cubic root of 1318888131 is about 1096.6532246556.

The spelling of 1318888131 in words is "one billion, three hundred eighteen million, eight hundred eighty-eight thousand, one hundred thirty-one".