1316107021 has 2 divisors, whose sum is σ = 1316107022. Its totient is φ = 1316107020.

The previous prime is 1316106973. The next prime is 1316107043. The reversal of 1316107021 is 1207016131.

It is an a-pointer prime, because the next prime (1316107043) can be obtained adding 1316107021 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 999444996 + 316662025 = 31614^2 + 17795^2 .

It is a cyclic number.

It is not a de Polignac number, because 1316107021 - 2¹¹ = 1316104973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1316106983 and 1316107001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1316107061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658053510 + 658053511.

It is an arithmetic number, because the mean of its divisors is an integer number (658053511).

Almost surely, 2^1316107021 is an apocalyptic number.

It is an amenable number.

1316107021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1316107021 is an equidigital number, since it uses as much as digits as its factorization.

1316107021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 1316107021 is about 36278.1893291272. The cubic root of 1316107021 is about 1095.8818528073.

The spelling of 1316107021 in words is "one billion, three hundred sixteen million, one hundred seven thousand, twenty-one".