115428112101 has 24 divisors (see below), whose sum is σ = 173965486240. Its totient is φ = 76479949872.

The previous prime is 115428112013. The next prime is 115428112127. The reversal of 115428112101 is 101211824511.

115428112101 is a `hidden beast` number, since 1 + 1 + 542 + 8 + 1 + 12 + 101 = 666.

It is not a de Polignac number, because 115428112101 - 2²⁶ = 115361003237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115428112901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1417486 + ... + 1496703.

Almost surely, 2^115428112101 is an apocalyptic number.

It is an amenable number.

115428112101 is a deficient number, since it is larger than the sum of its proper divisors (58537374139).

115428112101 is an equidigital number, since it uses as much as digits as its factorization.

115428112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914367 (or 2914355 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 27.

Adding to 115428112101 its reverse (101211824511), we get a palindrome (216639936612).

It can be divided in two parts, 115428 and 112101, that added together give a square (227529 = 477²).

The spelling of 115428112101 in words is "one hundred fifteen billion, four hundred twenty-eight million, one hundred twelve thousand, one hundred one".