1310972843 has 2 divisors, whose sum is σ = 1310972844. Its totient is φ = 1310972842.

The previous prime is 1310972813. The next prime is 1310972851. The reversal of 1310972843 is 3482790131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1310972843 - 2¹⁸ = 1310710699 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1310972797 and 1310972806.

It is not a weakly prime, because it can be changed into another prime (1310972813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655486421 + 655486422.

It is an arithmetic number, because the mean of its divisors is an integer number (655486422).

Almost surely, 2^1310972843 is an apocalyptic number.

1310972843 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310972843 is an equidigital number, since it uses as much as digits as its factorization.

1310972843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 1310972843 is about 36207.3589619569. The cubic root of 1310972843 is about 1094.4549717016.

The spelling of 1310972843 in words is "one billion, three hundred ten million, nine hundred seventy-two thousand, eight hundred forty-three".