1316061931 has 2 divisors, whose sum is σ = 1316061932. Its totient is φ = 1316061930.

The previous prime is 1316061889. The next prime is 1316061959. The reversal of 1316061931 is 1391606131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1316061931 is a prime.

It is a super-2 number, since 2×1316061931² = 3464038012454897522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1316061893 and 1316061902.

It is not a weakly prime, because it can be changed into another prime (1316064931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658030965 + 658030966.

It is an arithmetic number, because the mean of its divisors is an integer number (658030966).

Almost surely, 2^1316061931 is an apocalyptic number.

1316061931 is a deficient number, since it is larger than the sum of its proper divisors (1).

1316061931 is an equidigital number, since it uses as much as digits as its factorization.

1316061931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 1316061931 is about 36277.5678760305. The cubic root of 1316061931 is about 1095.8693376455.

The spelling of 1316061931 in words is "one billion, three hundred sixteen million, sixty-one thousand, nine hundred thirty-one".