102320311 has 4 divisors (see below), whose sum is σ = 102380824. Its totient is φ = 102259800.

The previous prime is 102320293. The next prime is 102320321. The reversal of 102320311 is 113023201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113023201 = 157 ⋅719893.

It is a cyclic number.

It is not a de Polignac number, because 102320311 - 2⁵ = 102320279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102320291 and 102320300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102320321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27645 + ... + 31126.

It is an arithmetic number, because the mean of its divisors is an integer number (25595206).

Almost surely, 2^102320311 is an apocalyptic number.

102320311 is a deficient number, since it is larger than the sum of its proper divisors (60513).

102320311 is an equidigital number, since it uses as much as digits as its factorization.

102320311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60512.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 102320311 is about 10115.3502658089. The cubic root of 102320311 is about 467.7214461766.

Adding to 102320311 its reverse (113023201), we get a palindrome (215343512).

The spelling of 102320311 in words is "one hundred two million, three hundred twenty thousand, three hundred eleven".