23131042403 has 16 divisors (see below), whose sum is σ = 26649315840. Its totient is φ = 19666483776.

The previous prime is 23131042397. The next prime is 23131042411. The reversal of 23131042403 is 30424013132.

It is a cyclic number.

It is not a de Polignac number, because 23131042403 - 2¹⁴ = 23131026019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23131042463) 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 15 ways as a sum of consecutive naturals, for example, 1150826 + ... + 1170752.

It is an arithmetic number, because the mean of its divisors is an integer number (1665582240).

Almost surely, 2^23131042403 is an apocalyptic number.

23131042403 is a deficient number, since it is larger than the sum of its proper divisors (3518273437).

23131042403 is a wasteful number, since it uses less digits than its factorization.

23131042403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21266.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 23131042403 its reverse (30424013132), we get a palindrome (53555055535).

The spelling of 23131042403 in words is "twenty-three billion, one hundred thirty-one million, forty-two thousand, four hundred three".