1231434422 has 16 divisors (see below), whose sum is σ = 1963253760. Its totient is φ = 577645992.

The previous prime is 1231434401. The next prime is 1231434427. The reversal of 1231434422 is 2244341321.

It is a junction number, because it is equal to n+sod(n) for n = 1231434391 and 1231434400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231434427) 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, 153398 + ... + 161225.

It is an arithmetic number, because the mean of its divisors is an integer number (122703360).

Almost surely, 2^1231434422 is an apocalyptic number.

1231434422 is a deficient number, since it is larger than the sum of its proper divisors (731819338).

1231434422 is a wasteful number, since it uses less digits than its factorization.

1231434422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314747.

The product of its digits is 4608, while the sum is 26.

The square root of 1231434422 is about 35091.7999253387. The cubic root of 1231434422 is about 1071.8576116619.

Adding to 1231434422 its reverse (2244341321), we get a palindrome (3475775743).

The spelling of 1231434422 in words is "one billion, two hundred thirty-one million, four hundred thirty-four thousand, four hundred twenty-two".