102000031249 has 2 divisors, whose sum is σ = 102000031250. Its totient is φ = 102000031248.

The previous prime is 102000031193. The next prime is 102000031303. The reversal of 102000031249 is 942130000201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86071824400 + 15928206849 = 293380^2 + 126207^2 .

It is a cyclic number.

It is not a de Polignac number, because 102000031249 - 2²⁷ = 101865813521 is a prime.

It is not a weakly prime, because it can be changed into another prime (102000431249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51000015624 + 51000015625.

It is an arithmetic number, because the mean of its divisors is an integer number (51000015625).

Almost surely, 2^102000031249 is an apocalyptic number.

It is an amenable number.

102000031249 is a deficient number, since it is larger than the sum of its proper divisors (1).

102000031249 is an equidigital number, since it uses as much as digits as its factorization.

102000031249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 102000031249 in words is "one hundred two billion, thirty-one thousand, two hundred forty-nine".