102709331 has 2 divisors, whose sum is σ = 102709332. Its totient is φ = 102709330.

The previous prime is 102709319. The next prime is 102709337. The reversal of 102709331 is 133907201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102709331 is a prime.

It is a super-2 number, since 2×102709331² = 21098413348935122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102709331.

It is not a weakly prime, because it can be changed into another prime (102709337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51354665 + 51354666.

It is an arithmetic number, because the mean of its divisors is an integer number (51354666).

Almost surely, 2^102709331 is an apocalyptic number.

102709331 is a deficient number, since it is larger than the sum of its proper divisors (1).

102709331 is an equidigital number, since it uses as much as digits as its factorization.

102709331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 102709331 is about 10134.5612139846. The cubic root of 102709331 is about 468.3134527457.

The spelling of 102709331 in words is "one hundred two million, seven hundred nine thousand, three hundred thirty-one".