115321002321 has 16 divisors (see below), whose sum is σ = 175740364800. Its totient is φ = 65892794448.

The previous prime is 115321002253. The next prime is 115321002331. The reversal of 115321002321 is 123200123511.

It is not a de Polignac number, because 115321002321 - 2¹⁷ = 115320871249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (115321002331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92920 + ... + 489158.

It is an arithmetic number, because the mean of its divisors is an integer number (10983772800).

Almost surely, 2^115321002321 is an apocalyptic number.

It is an amenable number.

115321002321 is a deficient number, since it is larger than the sum of its proper divisors (60419362479).

115321002321 is a wasteful number, since it uses less digits than its factorization.

115321002321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410108.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 115321002321 its reverse (123200123511), we get a palindrome (238521125832).

The spelling of 115321002321 in words is "one hundred fifteen billion, three hundred twenty-one million, two thousand, three hundred twenty-one".