102423020340 has 96 divisors (see below), whose sum is σ = 288645186816. Its totient is φ = 27135820800.

The previous prime is 102423020311. The next prime is 102423020341. The reversal of 102423020340 is 43020324201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102423020341) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 20684865 + ... + 20689815.

It is an arithmetic number, because the mean of its divisors is an integer number (3006720696).

Almost surely, 2^102423020340 is an apocalyptic number.

102423020340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102423020340 is an abundant number, since it is smaller than the sum of its proper divisors (186222166476).

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

102423020340 is a wasteful number, since it uses less digits than its factorization.

102423020340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7129 (or 7127 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 102423020340 its reverse (43020324201), we get a palindrome (145443344541).

The spelling of 102423020340 in words is "one hundred two billion, four hundred twenty-three million, twenty thousand, three hundred forty".