23420042031 has 16 divisors (see below), whose sum is σ = 32618905344. Its totient is φ = 14918707584.

The previous prime is 23420041999. The next prime is 23420042069. The reversal of 23420042031 is 13024002432.

It is not a de Polignac number, because 23420042031 - 2⁵ = 23420041999 is a prime.

It is a super-2 number, since 2×23420042031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23420041989 and 23420042007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23420046031) 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, 113866 + ... + 244551.

It is an arithmetic number, because the mean of its divisors is an integer number (2038681584).

Almost surely, 2^23420042031 is an apocalyptic number.

23420042031 is a deficient number, since it is larger than the sum of its proper divisors (9198863313).

23420042031 is a wasteful number, since it uses less digits than its factorization.

23420042031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359390.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 23420042031 its reverse (13024002432), we get a palindrome (36444044463).

The spelling of 23420042031 in words is "twenty-three billion, four hundred twenty million, forty-two thousand, thirty-one".