102040140424 has 16 divisors (see below), whose sum is σ = 192087519120. Its totient is φ = 50816802000.

The previous prime is 102040140409. The next prime is 102040140469. The reversal of 102040140424 is 424041040201.

It is a junction number, because it is equal to n+sod(n) for n = 102040140395 and 102040140404.

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, 25406394 + ... + 25410409.

It is an arithmetic number, because the mean of its divisors is an integer number (12005469945).

Almost surely, 2^102040140424 is an apocalyptic number.

It is an amenable number.

102040140424 is a deficient number, since it is larger than the sum of its proper divisors (90047378696).

102040140424 is a wasteful number, since it uses less digits than its factorization.

102040140424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50817060 (or 50817056 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 102040140424 its reverse (424041040201), we get a palindrome (526081180625).

The spelling of 102040140424 in words is "one hundred two billion, forty million, one hundred forty thousand, four hundred twenty-four".