102997313 has 4 divisors (see below), whose sum is σ = 103520340. Its totient is φ = 102474288.

The previous prime is 102997253. The next prime is 102997327. The reversal of 102997313 is 313799201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313799201 = 823 ⋅381287.

It can be written as a sum of positive squares in 2 ways, for example, as 102252544 + 744769 = 10112^2 + 863^2 .

It is a cyclic number.

It is not a de Polignac number, because 102997313 - 2⁶ = 102997249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102997333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261218 + ... + 261611.

It is an arithmetic number, because the mean of its divisors is an integer number (25880085).

Almost surely, 2^102997313 is an apocalyptic number.

It is an amenable number.

102997313 is a deficient number, since it is larger than the sum of its proper divisors (523027).

102997313 is an equidigital number, since it uses as much as digits as its factorization.

102997313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523026.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 102997313 is about 10148.7591852403. The cubic root of 102997313 is about 468.7507385351.

The spelling of 102997313 in words is "one hundred two million, nine hundred ninety-seven thousand, three hundred thirteen".