102618327442731 has 16 divisors (see below), whose sum is σ = 147918309830400. Its totient is φ = 63059911030368.

The previous prime is 102618327442711. The next prime is 102618327442747. The reversal of 102618327442731 is 137244723816201.

It is a happy number.

It is not a de Polignac number, because 102618327442731 - 2⁹ = 102618327442219 is a prime.

It is a super-2 number, since 2×102618327442731² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102618327442711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24328667271 + ... + 24328671488.

It is an arithmetic number, because the mean of its divisors is an integer number (9244894364400).

Almost surely, 2^{102618327442731} is an apocalyptic number.

102618327442731 is a deficient number, since it is larger than the sum of its proper divisors (45299982387669).

102618327442731 is a wasteful number, since it uses less digits than its factorization.

102618327442731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48657338818.

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 102618327442731 in words is "one hundred two trillion, six hundred eighteen billion, three hundred twenty-seven million, four hundred forty-two thousand, seven hundred thirty-one".