102320243213015 has 4 divisors (see below), whose sum is σ = 122784291855624. Its totient is φ = 81856194570408.

The previous prime is 102320243213011. The next prime is 102320243213059. The reversal of 102320243213015 is 510312342023201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102320243213015 - 2² = 102320243213011 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 (102320243213011) 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, 10232024321297 + ... + 10232024321306.

It is an arithmetic number, because the mean of its divisors is an integer number (30696072963906).

Almost surely, 2^{102320243213015} is an apocalyptic number.

102320243213015 is a deficient number, since it is larger than the sum of its proper divisors (20464048642609).

102320243213015 is an equidigital number, since it uses as much as digits as its factorization.

102320243213015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20464048642608.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 102320243213015 its reverse (510312342023201), we get a palindrome (612632585236216).

The spelling of 102320243213015 in words is "one hundred two trillion, three hundred twenty billion, two hundred forty-three million, two hundred thirteen thousand, fifteen".