102351323215 has 4 divisors (see below), whose sum is σ = 122821587864. Its totient is φ = 81881058568.

The previous prime is 102351323209. The next prime is 102351323227. The reversal of 102351323215 is 512323153201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102351323215 is a prime.

It is a super-2 number, since 2×102351323215² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10235132317 + ... + 10235132326.

It is an arithmetic number, because the mean of its divisors is an integer number (30705396966).

Almost surely, 2^102351323215 is an apocalyptic number.

102351323215 is a deficient number, since it is larger than the sum of its proper divisors (20470264649).

102351323215 is an equidigital number, since it uses as much as digits as its factorization.

102351323215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20470264648.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 102351323215 its reverse (512323153201), we get a palindrome (614674476416).

The spelling of 102351323215 in words is "one hundred two billion, three hundred fifty-one million, three hundred twenty-three thousand, two hundred fifteen".