102131444242 has 8 divisors (see below), whose sum is σ = 153218154096. Its totient is φ = 51058726212.

The previous prime is 102131444203. The next prime is 102131444269. The reversal of 102131444242 is 242444131201.

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

It is a self number, because there is not a number n which added to its sum of digits gives 102131444242.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3479688 + ... + 3508915.

It is an arithmetic number, because the mean of its divisors is an integer number (19152269262).

Almost surely, 2^102131444242 is an apocalyptic number.

102131444242 is a deficient number, since it is larger than the sum of its proper divisors (51086709854).

102131444242 is an equidigital number, since it uses as much as digits as its factorization.

102131444242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6995912.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 102131444242 its reverse (242444131201), we get a palindrome (344575575443).

The spelling of 102131444242 in words is "one hundred two billion, one hundred thirty-one million, four hundred forty-four thousand, two hundred forty-two".