102431040121423 has 16 divisors (see below), whose sum is σ = 110626840086336. Its totient is φ = 94280472253440.

The previous prime is 102431040121387. The next prime is 102431040121427. The reversal of 102431040121423 is 324121040134201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 102431040121423 - 2³³ = 102422450186831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102431040121391 and 102431040121400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102431040121427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131366061 + ... + 132143497.

It is an arithmetic number, because the mean of its divisors is an integer number (6914177505396).

Almost surely, 2^{102431040121423} is an apocalyptic number.

102431040121423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

102431040121423 is a deficient number, since it is larger than the sum of its proper divisors (8195799964913).

102431040121423 is a wasteful number, since it uses less digits than its factorization.

102431040121423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806514.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 102431040121423 its reverse (324121040134201), we get a palindrome (426552080255624).

The spelling of 102431040121423 in words is "one hundred two trillion, four hundred thirty-one billion, forty million, one hundred twenty-one thousand, four hundred twenty-three".