23420311145 has 64 divisors (see below), whose sum is σ = 36929433600. Its totient is φ = 13814012160.

The previous prime is 23420311121. The next prime is 23420311217. The reversal of 23420311145 is 54111302432.

It is a happy number.

It is not a de Polignac number, because 23420311145 - 2⁶ = 23420311081 is a prime.

It is a super-2 number, since 2×23420311145² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8110892 + ... + 8113778.

It is an arithmetic number, because the mean of its divisors is an integer number (577022400).

Almost surely, 2^23420311145 is an apocalyptic number.

It is an amenable number.

23420311145 is a deficient number, since it is larger than the sum of its proper divisors (13509122455).

23420311145 is a wasteful number, since it uses less digits than its factorization.

23420311145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4038.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 23420311145 its reverse (54111302432), we get a palindrome (77531613577).

The spelling of 23420311145 in words is "twenty-three billion, four hundred twenty million, three hundred eleven thousand, one hundred forty-five".