23431243433403 has 16 divisors (see below), whose sum is σ = 35623971917856. Its totient is φ = 13571036920320.

The previous prime is 23431243433399. The next prime is 23431243433453. The reversal of 23431243433403 is 30433434213432.

It is not a de Polignac number, because 23431243433403 - 2² = 23431243433399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (23431243433453) 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, 17670620328 + ... + 17670621653.

It is an arithmetic number, because the mean of its divisors is an integer number (2226498244866).

Almost surely, 2^{23431243433403} is an apocalyptic number.

23431243433403 is a deficient number, since it is larger than the sum of its proper divisors (12192728484453).

23431243433403 is a wasteful number, since it uses less digits than its factorization.

23431243433403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35341242014.

The product of its (nonzero) digits is 746496, while the sum is 39.

Adding to 23431243433403 its reverse (30433434213432), we get a palindrome (53864677646835).

The spelling of 23431243433403 in words is "twenty-three trillion, four hundred thirty-one billion, two hundred forty-three million, four hundred thirty-three thousand, four hundred three".