1031320001249 has 2 divisors, whose sum is σ = 1031320001250. Its totient is φ = 1031320001248.

The previous prime is 1031320001209. The next prime is 1031320001363. The reversal of 1031320001249 is 9421000231301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 547293682849 + 484026318400 = 739793^2 + 695720^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031320001249 - 2⁸ = 1031320000993 is a prime.

It is not a weakly prime, because it can be changed into another prime (1031320001209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515660000624 + 515660000625.

It is an arithmetic number, because the mean of its divisors is an integer number (515660000625).

Almost surely, 2^{1031320001249} is an apocalyptic number.

It is an amenable number.

1031320001249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031320001249 is an equidigital number, since it uses as much as digits as its factorization.

1031320001249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 1031320001249 in words is "one trillion, thirty-one billion, three hundred twenty million, one thousand, two hundred forty-nine".