1231333422 has 32 divisors (see below), whose sum is σ = 2732088960. Its totient is φ = 366805920.

The previous prime is 1231333403. The next prime is 1231333463. The reversal of 1231333422 is 2243331321.

It is a super-2 number, since 2×1231333422² = 3032363992268460168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1231333392 and 1231333401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154213 + ... + 162000.

It is an arithmetic number, because the mean of its divisors is an integer number (85377780).

Almost surely, 2^1231333422 is an apocalyptic number.

1231333422 is an abundant number, since it is smaller than the sum of its proper divisors (1500755538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231333422 is a wasteful number, since it uses less digits than its factorization.

1231333422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316288.

The product of its digits is 2592, while the sum is 24.

The square root of 1231333422 is about 35090.3608131920. The cubic root of 1231333422 is about 1071.8283069268.

Adding to 1231333422 its reverse (2243331321), we get a palindrome (3474664743).

The spelling of 1231333422 in words is "one billion, two hundred thirty-one million, three hundred thirty-three thousand, four hundred twenty-two".