1225030431 has 24 divisors (see below), whose sum is σ = 1681069072. Its totient is φ = 793497600.

The previous prime is 1225030423. The next prime is 1225030451. The reversal of 1225030431 is 1340305221.

It is not a de Polignac number, because 1225030431 - 2³ = 1225030423 is a prime.

It is a super-2 number, since 2×1225030431² = 3001399113752091522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1225030398 and 1225030407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225030451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2122815 + ... + 2123391.

Almost surely, 2^1225030431 is an apocalyptic number.

1225030431 is a deficient number, since it is larger than the sum of its proper divisors (456038641).

1225030431 is an equidigital number, since it uses as much as digits as its factorization.

1225030431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083 (or 1042 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1225030431 is about 35000.4347258716. The cubic root of 1225030431 is about 1069.9963405704.

Adding to 1225030431 its reverse (1340305221), we get a palindrome (2565335652).

The spelling of 1225030431 in words is "one billion, two hundred twenty-five million, thirty thousand, four hundred thirty-one".