115502420410021 has 8 divisors (see below), whose sum is σ = 115616668728960. Its totient is φ = 115388182603152.

The previous prime is 115502420409967. The next prime is 115502420410061. The reversal of 115502420410021 is 120014024205511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-115502420410021 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 (115502420410061) 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, 19449711 + ... + 24683923.

It is an arithmetic number, because the mean of its divisors is an integer number (14452083591120).

Almost surely, 2^{115502420410021} is an apocalyptic number.

It is an amenable number.

115502420410021 is a deficient number, since it is larger than the sum of its proper divisors (114248318939).

115502420410021 is a wasteful number, since it uses less digits than its factorization.

115502420410021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5256035.

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 115502420410021 its reverse (120014024205511), we get a palindrome (235516444615532).

The spelling of 115502420410021 in words is "one hundred fifteen trillion, five hundred two billion, four hundred twenty million, four hundred ten thousand, twenty-one".