1231425404 has 24 divisors (see below), whose sum is σ = 2352061488. Its totient is φ = 559463040.

The previous prime is 1231425389. The next prime is 1231425407. The reversal of 1231425404 is 4045241321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231425407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103154 + ... + 114470.

It is an arithmetic number, because the mean of its divisors is an integer number (98002562).

Almost surely, 2^1231425404 is an apocalyptic number.

It is an amenable number.

1231425404 is a deficient number, since it is larger than the sum of its proper divisors (1120636084).

1231425404 is a wasteful number, since it uses less digits than its factorization.

1231425404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13805 (or 13803 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1231425404 is about 35091.6714335467. The cubic root of 1231425404 is about 1071.8549951914.

Adding to 1231425404 its reverse (4045241321), we get a palindrome (5276666725).

The spelling of 1231425404 in words is "one billion, two hundred thirty-one million, four hundred twenty-five thousand, four hundred four".