115020021121 has 8 divisors (see below), whose sum is σ = 116682338304. Its totient is φ = 113364288240.

The previous prime is 115020021119. The next prime is 115020021139. The reversal of 115020021121 is 121120020511.

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 115020021121 - 2¹ = 115020021119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115020021095 and 115020021104.

It is not an unprimeable number, because it can be changed into a prime (115020024121) 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, 1610881 + ... + 1680766.

It is an arithmetic number, because the mean of its divisors is an integer number (14585292288).

Almost surely, 2^115020021121 is an apocalyptic number.

It is an amenable number.

115020021121 is a deficient number, since it is larger than the sum of its proper divisors (1662317183).

115020021121 is an equidigital number, since it uses as much as digits as its factorization.

115020021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3292151.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 115020021121 its reverse (121120020511), we get a palindrome (236140041632).

The spelling of 115020021121 in words is "one hundred fifteen billion, twenty million, twenty-one thousand, one hundred twenty-one".