1316553131 has 2 divisors, whose sum is σ = 1316553132. Its totient is φ = 1316553130.

The previous prime is 1316553113. The next prime is 1316553157. The reversal of 1316553131 is 1313556131.

Together with previous prime (1316553113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1316553131 is a prime.

It is a super-2 number, since 2×1316553131² = 3466624293491806322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1316553094 and 1316553103.

It is not a weakly prime, because it can be changed into another prime (1316553181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658276565 + 658276566.

It is an arithmetic number, because the mean of its divisors is an integer number (658276566).

Almost surely, 2^1316553131 is an apocalyptic number.

1316553131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1316553131 is an equidigital number, since it uses as much as digits as its factorization.

1316553131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4050, while the sum is 29.

The square root of 1316553131 is about 36284.3372683035. The cubic root of 1316553131 is about 1096.0056595135.

The spelling of 1316553131 in words is "one billion, three hundred sixteen million, five hundred fifty-three thousand, one hundred thirty-one".