115400122103421 has 32 divisors (see below), whose sum is σ = 175165344097920. Its totient is φ = 75047053761792.

The previous prime is 115400122103389. The next prime is 115400122103423. The reversal of 115400122103421 is 124301221004511.

115400122103421 is a `hidden beast` number, since 1 + 1 + 5 + 400 + 1 + 2 + 210 + 3 + 42 + 1 = 666.

It is not a de Polignac number, because 115400122103421 - 2⁵ = 115400122103389 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115400122103423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63395676 + ... + 65190581.

It is an arithmetic number, because the mean of its divisors is an integer number (5473917003060).

Almost surely, 2^{115400122103421} is an apocalyptic number.

It is an amenable number.

115400122103421 is a deficient number, since it is larger than the sum of its proper divisors (59765221994499).

115400122103421 is a wasteful number, since it uses less digits than its factorization.

115400122103421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128587082 (or 128587076 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 115400122103421 its reverse (124301221004511), we get a palindrome (239701343107932).

The spelling of 115400122103421 in words is "one hundred fifteen trillion, four hundred billion, one hundred twenty-two million, one hundred three thousand, four hundred twenty-one".