23145133433 has 2 divisors, whose sum is σ = 23145133434. Its totient is φ = 23145133432.

The previous prime is 23145133411. The next prime is 23145133483. The reversal of 23145133433 is 33433154132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16649257024 + 6495876409 = 129032^2 + 80597^2 .

It is a cyclic number.

It is not a de Polignac number, because 23145133433 - 2³⁰ = 22071391609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23145133433.

It is not a weakly prime, because it can be changed into another prime (23145133483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11572566716 + 11572566717.

It is an arithmetic number, because the mean of its divisors is an integer number (11572566717).

Almost surely, 2^23145133433 is an apocalyptic number.

It is an amenable number.

23145133433 is a deficient number, since it is larger than the sum of its proper divisors (1).

23145133433 is an equidigital number, since it uses as much as digits as its factorization.

23145133433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 32.

Adding to 23145133433 its reverse (33433154132), we get a palindrome (56578287565).

The spelling of 23145133433 in words is "twenty-three billion, one hundred forty-five million, one hundred thirty-three thousand, four hundred thirty-three".