102142020412 has 12 divisors (see below), whose sum is σ = 179393839240. Its totient is φ = 50886637776.

The previous prime is 102142020341. The next prime is 102142020437. The reversal of 102142020412 is 214020241201.

It is a self number, because there is not a number n which added to its sum of digits gives 102142020412.

It is a congruent number.

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, 46091862 + ... + 46094077.

Almost surely, 2^102142020412 is an apocalyptic number.

It is an amenable number.

102142020412 is a deficient number, since it is larger than the sum of its proper divisors (77251818828).

102142020412 is a wasteful number, since it uses less digits than its factorization.

102142020412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92186220 (or 92186218 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 102142020412 its reverse (214020241201), we get a palindrome (316162261613).

The spelling of 102142020412 in words is "one hundred two billion, one hundred forty-two million, twenty thousand, four hundred twelve".