1232400501 has 48 divisors (see below), whose sum is σ = 1922356800. Its totient is φ = 788030208.

The previous prime is 1232400497. The next prime is 1232400523. The reversal of 1232400501 is 1050042321.

1232400501 is a `hidden beast` number, since 123 + 2 + 40 + 0 + 501 = 666.

It is not a de Polignac number, because 1232400501 - 2² = 1232400497 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232400541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1260925 + ... + 1261901.

It is an arithmetic number, because the mean of its divisors is an integer number (40049100).

Almost surely, 2^1232400501 is an apocalyptic number.

It is an amenable number.

1232400501 is a deficient number, since it is larger than the sum of its proper divisors (689956299).

1232400501 is an equidigital number, since it uses as much as digits as its factorization.

1232400501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200 (or 1188 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1232400501 is about 35105.5622515863. The cubic root of 1232400501 is about 1072.1378345848.

Adding to 1232400501 its reverse (1050042321), we get a palindrome (2282442822).

The spelling of 1232400501 in words is "one billion, two hundred thirty-two million, four hundred thousand, five hundred one".