115210340411021 has 4 divisors (see below), whose sum is σ = 115210362110844. Its totient is φ = 115210318711200.

The previous prime is 115210340410939. The next prime is 115210340411063. The reversal of 115210340411021 is 120114043012511.

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

It can be written as a sum of positive squares in 2 ways, for example, as 75962746666921 + 39247593744100 = 8715661^2 + 6264790^2 .

It is a cyclic number.

It is not a de Polignac number, because 115210340411021 - 2⁴² = 110812293899917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115210340417021) 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, 3048401 + ... + 15482681.

It is an arithmetic number, because the mean of its divisors is an integer number (28802590527711).

Almost surely, 2^{115210340411021} is an apocalyptic number.

It is an amenable number.

115210340411021 is a deficient number, since it is larger than the sum of its proper divisors (21699823).

115210340411021 is an equidigital number, since it uses as much as digits as its factorization.

115210340411021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21699822.

The product of its (nonzero) digits is 960, while the sum is 26.

Adding to 115210340411021 its reverse (120114043012511), we get a palindrome (235324383423532).

The spelling of 115210340411021 in words is "one hundred fifteen trillion, two hundred ten billion, three hundred forty million, four hundred eleven thousand, twenty-one".