102231313 has 4 divisors (see below), whose sum is σ = 102670308. Its totient is φ = 101792320.

The previous prime is 102231301. The next prime is 102231361. The reversal of 102231313 is 313132201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313132201 = 1693 ⋅184957.

It can be written as a sum of positive squares in 2 ways, for example, as 50865424 + 51365889 = 7132^2 + 7167^2 .

It is a cyclic number.

It is not a de Polignac number, because 102231313 - 2⁵ = 102231281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102231373) 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, 219148 + ... + 219613.

It is an arithmetic number, because the mean of its divisors is an integer number (25667577).

Almost surely, 2^102231313 is an apocalyptic number.

It is an amenable number.

102231313 is a deficient number, since it is larger than the sum of its proper divisors (438995).

102231313 is an equidigital number, since it uses as much as digits as its factorization.

102231313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438994.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 102231313 is about 10110.9501531755. The cubic root of 102231313 is about 467.5857991171.

Adding to 102231313 its reverse (313132201), we get a palindrome (415363514).

The spelling of 102231313 in words is "one hundred two million, two hundred thirty-one thousand, three hundred thirteen".