1253326331 has 4 divisors (see below), whose sum is σ = 1255618152. Its totient is φ = 1251034512.

The previous prime is 1253326303. The next prime is 1253326337. The reversal of 1253326331 is 1336233521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1253326331 - 2³⁰ = 179584507 is a prime.

It is a super-2 number, since 2×1253326331² = 3141653783955843122, 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 = 1253326294 and 1253326303.

It is not an unprimeable number, because it can be changed into a prime (1253326337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1145090 + ... + 1146183.

It is an arithmetic number, because the mean of its divisors is an integer number (313904538).

Almost surely, 2^1253326331 is an apocalyptic number.

1253326331 is a deficient number, since it is larger than the sum of its proper divisors (2291821).

1253326331 is an equidigital number, since it uses as much as digits as its factorization.

1253326331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291820.

The product of its digits is 9720, while the sum is 29.

The square root of 1253326331 is about 35402.3492299593. The cubic root of 1253326331 is about 1078.1720137572.

Adding to 1253326331 its reverse (1336233521), we get a palindrome (2589559852).

The spelling of 1253326331 in words is "one billion, two hundred fifty-three million, three hundred twenty-six thousand, three hundred thirty-one".