115516420203 has 4 divisors (see below), whose sum is σ = 154021893608. Its totient is φ = 77010946800.

The previous prime is 115516420177. The next prime is 115516420241. The reversal of 115516420203 is 302024615511.

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

It is not a de Polignac number, because 115516420203 - 2⁵ = 115516420171 is a prime.

It is a super-2 number, since 2×115516420203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115516420003) 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, 19252736698 + ... + 19252736703.

It is an arithmetic number, because the mean of its divisors is an integer number (38505473402).

Almost surely, 2^115516420203 is an apocalyptic number.

115516420203 is a deficient number, since it is larger than the sum of its proper divisors (38505473405).

115516420203 is an equidigital number, since it uses as much as digits as its factorization.

115516420203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38505473404.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 115516420203 in words is "one hundred fifteen billion, five hundred sixteen million, four hundred twenty thousand, two hundred three".