43401253023 has 12 divisors (see below), whose sum is σ = 65416381680. Its totient is φ = 27676161216.

The previous prime is 43401253001. The next prime is 43401253073. The reversal of 43401253023 is 32035210434.

43401253023 is a `hidden beast` number, since 4 + 3 + 401 + 253 + 0 + 2 + 3 = 666.

43401253023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43401253023 - 2⁵ = 43401252991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43401253073) 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, 104833738 + ... + 104834151.

It is an arithmetic number, because the mean of its divisors is an integer number (5451365140).

Almost surely, 2^43401253023 is an apocalyptic number.

43401253023 is a deficient number, since it is larger than the sum of its proper divisors (22015128657).

43401253023 is a wasteful number, since it uses less digits than its factorization.

43401253023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209667918 (or 209667915 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 43401253023 its reverse (32035210434), we get a palindrome (75436463457).

The spelling of 43401253023 in words is "forty-three billion, four hundred one million, two hundred fifty-three thousand, twenty-three".