102430240040 has 32 divisors (see below), whose sum is σ = 231069818880. Its totient is φ = 40865113152.

The previous prime is 102430240039. The next prime is 102430240109. The reversal of 102430240040 is 40042034201.

102430240040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 102430239994 and 102430240021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3327704 + ... + 3358343.

It is an arithmetic number, because the mean of its divisors is an integer number (7220931840).

Almost surely, 2^102430240040 is an apocalyptic number.

102430240040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102430240040 is an abundant number, since it is smaller than the sum of its proper divisors (128639578840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102430240040 is a wasteful number, since it uses less digits than its factorization.

102430240040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6686441 (or 6686437 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 102430240040 its reverse (40042034201), we get a palindrome (142472274241).

The spelling of 102430240040 in words is "one hundred two billion, four hundred thirty million, two hundred forty thousand, forty".