102010031309 has 4 divisors (see below), whose sum is σ = 108010621404. Its totient is φ = 96009441216.

The previous prime is 102010031251. The next prime is 102010031329. The reversal of 102010031309 is 903130010201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 903130010201 = 439 ⋅2057243759.

It can be written as a sum of positive squares in 2 ways, for example, as 38214385225 + 63795646084 = 195485^2 + 252578^2 .

It is a cyclic number.

It is not a de Polignac number, because 102010031309 - 2¹² = 102010027213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102010031329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3000295022 + ... + 3000295055.

It is an arithmetic number, because the mean of its divisors is an integer number (27002655351).

Almost surely, 2^102010031309 is an apocalyptic number.

It is an amenable number.

102010031309 is a deficient number, since it is larger than the sum of its proper divisors (6000590095).

102010031309 is an equidigital number, since it uses as much as digits as its factorization.

102010031309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6000590094.

The product of its (nonzero) digits is 162, while the sum is 20.

The spelling of 102010031309 in words is "one hundred two billion, ten million, thirty-one thousand, three hundred nine".