100402340423 has 32 divisors (see below), whose sum is σ = 127898155008. Its totient is φ = 76536345600.

The previous prime is 100402340399. The next prime is 100402340491. The reversal of 100402340423 is 324043204001.

It is not a de Polignac number, because 100402340423 - 2¹⁶ = 100402274887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100402340023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10349111 + ... + 10358807.

It is an arithmetic number, because the mean of its divisors is an integer number (3996817344).

Almost surely, 2^100402340423 is an apocalyptic number.

100402340423 is a deficient number, since it is larger than the sum of its proper divisors (27495814585).

100402340423 is a wasteful number, since it uses less digits than its factorization.

100402340423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12623.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 100402340423 its reverse (324043204001), we get a palindrome (424445544424).

The spelling of 100402340423 in words is "one hundred billion, four hundred two million, three hundred forty thousand, four hundred twenty-three".