23420422152431 has 2 divisors, whose sum is σ = 23420422152432. Its totient is φ = 23420422152430.

The previous prime is 23420422152419. The next prime is 23420422152473. The reversal of 23420422152431 is 13425122402432.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23420422152431 is a prime.

It is a super-2 number, since 2×23420422152431² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23420422152391 and 23420422152400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23420422152031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11710211076215 + 11710211076216.

It is an arithmetic number, because the mean of its divisors is an integer number (11710211076216).

Almost surely, 2^{23420422152431} is an apocalyptic number.

23420422152431 is a deficient number, since it is larger than the sum of its proper divisors (1).

23420422152431 is an equidigital number, since it uses as much as digits as its factorization.

23420422152431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 23420422152431 its reverse (13425122402432), we get a palindrome (36845544554863).

The spelling of 23420422152431 in words is "twenty-three trillion, four hundred twenty billion, four hundred twenty-two million, one hundred fifty-two thousand, four hundred thirty-one".