23040120427 has 2 divisors, whose sum is σ = 23040120428. Its totient is φ = 23040120426.

The previous prime is 23040120353. The next prime is 23040120449. The reversal of 23040120427 is 72402104032.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23040120427 is a prime.

It is not a weakly prime, because it can be changed into another prime (23040120527) 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 as a sum of consecutive naturals, namely, 11520060213 + 11520060214.

It is an arithmetic number, because the mean of its divisors is an integer number (11520060214).

Almost surely, 2^23040120427 is an apocalyptic number.

23040120427 is a deficient number, since it is larger than the sum of its proper divisors (1).

23040120427 is an equidigital number, since it uses as much as digits as its factorization.

23040120427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 25.

Adding to 23040120427 its reverse (72402104032), we get a palindrome (95442224459).

The spelling of 23040120427 in words is "twenty-three billion, forty million, one hundred twenty thousand, four hundred twenty-seven".