102420342331312 has 20 divisors (see below), whose sum is σ = 203279398957656. Its totient is φ = 49961142600320.

The previous prime is 102420342331261. The next prime is 102420342331343. The reversal of 102420342331312 is 213133243024201.

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, 78064284658 + ... + 78064285969.

Almost surely, 2^{102420342331312} is an apocalyptic number.

It is an amenable number.

102420342331312 is a deficient number, since it is larger than the sum of its proper divisors (100859056626344).

102420342331312 is a wasteful number, since it uses less digits than its factorization.

102420342331312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156128570676 (or 156128570670 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 102420342331312 its reverse (213133243024201), we get a palindrome (315553585355513).

The spelling of 102420342331312 in words is "one hundred two trillion, four hundred twenty billion, three hundred forty-two million, three hundred thirty-one thousand, three hundred twelve".