23154020423 has 2 divisors, whose sum is σ = 23154020424. Its totient is φ = 23154020422.

The previous prime is 23154020411. The next prime is 23154020467. The reversal of 23154020423 is 32402045132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23154020423 - 2¹⁴ = 23154004039 is a prime.

It is a super-2 number, since 2×23154020423² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23154020392 and 23154020401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23151020423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11577010211 + 11577010212.

It is an arithmetic number, because the mean of its divisors is an integer number (11577010212).

Almost surely, 2^23154020423 is an apocalyptic number.

23154020423 is a deficient number, since it is larger than the sum of its proper divisors (1).

23154020423 is an equidigital number, since it uses as much as digits as its factorization.

23154020423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 23154020423 its reverse (32402045132), we get a palindrome (55556065555).

The spelling of 23154020423 in words is "twenty-three billion, one hundred fifty-four million, twenty thousand, four hundred twenty-three".