102140234012 has 12 divisors (see below), whose sum is σ = 178748249400. Its totient is φ = 51069305616.

The previous prime is 102140234011. The next prime is 102140234057. The reversal of 102140234012 is 210432041201.

It is a super-2 number, since 2×102140234012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102140234011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147698 + ... + 475494.

It is an arithmetic number, because the mean of its divisors is an integer number (14895687450).

Almost surely, 2^102140234012 is an apocalyptic number.

It is an amenable number.

102140234012 is a deficient number, since it is larger than the sum of its proper divisors (76608015388).

102140234012 is a wasteful number, since it uses less digits than its factorization.

102140234012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405700 (or 405698 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 102140234012 its reverse (210432041201), we get a palindrome (312572275213).

The spelling of 102140234012 in words is "one hundred two billion, one hundred forty million, two hundred thirty-four thousand, twelve".