23145045001 has 12 divisors (see below), whose sum is σ = 25088217372. Its totient is φ = 21342637056.

The previous prime is 23145044999. The next prime is 23145045017. The reversal of 23145045001 is 10054054132.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1823204601 + 21321840400 = 42699^2 + 146020^2 .

It is not a de Polignac number, because 23145045001 - 2¹ = 23145044999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23145045101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95025 + ... + 235201.

It is an arithmetic number, because the mean of its divisors is an integer number (2090684781).

Almost surely, 2^23145045001 is an apocalyptic number.

It is an amenable number.

23145045001 is a deficient number, since it is larger than the sum of its proper divisors (1943172371).

23145045001 is a wasteful number, since it uses less digits than its factorization.

23145045001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141180 (or 141167 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 23145045001 its reverse (10054054132), we get a palindrome (33199099133).

The spelling of 23145045001 in words is "twenty-three billion, one hundred forty-five million, forty-five thousand, one".