23503426123 has 4 divisors (see below), whose sum is σ = 23633279488. Its totient is φ = 23373572760.

The previous prime is 23503426103. The next prime is 23503426153. The reversal of 23503426123 is 32162430532.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23503426123 - 2⁵ = 23503426091 is a prime.

It is a super-2 number, since 2×23503426123² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23503426103) 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 3 ways as a sum of consecutive naturals, for example, 64926411 + ... + 64926772.

It is an arithmetic number, because the mean of its divisors is an integer number (5908319872).

Almost surely, 2^23503426123 is an apocalyptic number.

23503426123 is a deficient number, since it is larger than the sum of its proper divisors (129853365).

23503426123 is a wasteful number, since it uses less digits than its factorization.

23503426123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129853364.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 23503426123 its reverse (32162430532), we get a palindrome (55665856655).

The spelling of 23503426123 in words is "twenty-three billion, five hundred three million, four hundred twenty-six thousand, one hundred twenty-three".