1233220431 has 8 divisors (see below), whose sum is σ = 1644729984. Its totient is φ = 821928920.

The previous prime is 1233220423. The next prime is 1233220487. The reversal of 1233220431 is 1340223321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1233220431 - 2³ = 1233220423 is a prime.

It is a super-2 number, since 2×1233220431² = 3041665262871651522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1233220398 and 1233220407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233220231) 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, 40821 + ... + 64286.

It is an arithmetic number, because the mean of its divisors is an integer number (205591248).

Almost surely, 2^1233220431 is an apocalyptic number.

1233220431 is a deficient number, since it is larger than the sum of its proper divisors (411509553).

1233220431 is a wasteful number, since it uses less digits than its factorization.

1233220431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109021.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1233220431 is about 35117.2383737674. The cubic root of 1233220431 is about 1072.3755503524.

Adding to 1233220431 its reverse (1340223321), we get a palindrome (2573443752).

The spelling of 1233220431 in words is "one billion, two hundred thirty-three million, two hundred twenty thousand, four hundred thirty-one".