102312566302442 has 16 divisors (see below), whose sum is σ = 154365390335040. Its totient is φ = 50858298664992.

The previous prime is 102312566302433. The next prime is 102312566302481. The reversal of 102312566302442 is 244203665213201.

It is a super-2 number, since 2×102312566302442² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102312566302442.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215380958 + ... + 215855465.

It is an arithmetic number, because the mean of its divisors is an integer number (9647836895940).

Almost surely, 2^{102312566302442} is an apocalyptic number.

102312566302442 is a deficient number, since it is larger than the sum of its proper divisors (52052824032598).

102312566302442 is a wasteful number, since it uses less digits than its factorization.

102312566302442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431237117.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 102312566302442 in words is "one hundred two trillion, three hundred twelve billion, five hundred sixty-six million, three hundred two thousand, four hundred forty-two".