115121562321 has 8 divisors (see below), whose sum is σ = 156761276544. Its totient is φ = 75114778160.

The previous prime is 115121562299. The next prime is 115121562341. The reversal of 115121562321 is 123265121511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115121562321 - 2⁵ = 115121562289 is a prime.

It is a super-2 number, since 2×115121562321² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115121562341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408232350 + ... + 408232631.

It is an arithmetic number, because the mean of its divisors is an integer number (19595159568).

Almost surely, 2^115121562321 is an apocalyptic number.

It is an amenable number.

115121562321 is a deficient number, since it is larger than the sum of its proper divisors (41639714223).

115121562321 is an equidigital number, since it uses as much as digits as its factorization.

115121562321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816465031.

The product of its digits is 3600, while the sum is 30.

Adding to 115121562321 its reverse (123265121511), we get a palindrome (238386683832).

The spelling of 115121562321 in words is "one hundred fifteen billion, one hundred twenty-one million, five hundred sixty-two thousand, three hundred twenty-one".