23403002144 has 24 divisors (see below), whose sum is σ = 46159860348. Its totient is φ = 11679863040.

The previous prime is 23403002131. The next prime is 23403002149. The reversal of 23403002144 is 44120030432.

It can be written as a sum of positive squares in 2 ways, for example, as 19771734544 + 3631267600 = 140612^2 + 60260^2 .

It is not an unprimeable number, because it can be changed into a prime (23403002149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 658607 + ... + 693230.

Almost surely, 2^23403002144 is an apocalyptic number.

It is an amenable number.

23403002144 is a deficient number, since it is larger than the sum of its proper divisors (22756858204).

23403002144 is a wasteful number, since it uses less digits than its factorization.

23403002144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352388 (or 1352380 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 23403002144 its reverse (44120030432), we get a palindrome (67523032576).

The spelling of 23403002144 in words is "twenty-three billion, four hundred three million, two thousand, one hundred forty-four".