1253203320 has 64 divisors (see below), whose sum is σ = 3861234720. Its totient is φ = 325154304.

The previous prime is 1253203319. The next prime is 1253203363. The reversal of 1253203320 is 233023521.

It is a super-2 number, since 2×1253203320² = 3141037122518044800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136687 + ... + 145566.

Almost surely, 2^1253203320 is an apocalyptic number.

1253203320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1253203320 is an abundant number, since it is smaller than the sum of its proper divisors (2608031400).

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

1253203320 is a wasteful number, since it uses less digits than its factorization.

1253203320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282304 (or 282300 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 1253203320 is about 35400.6118591190. The cubic root of 1253203320 is about 1078.1367392631.

Adding to 1253203320 its reverse (233023521), we get a palindrome (1486226841).

The spelling of 1253203320 in words is "one billion, two hundred fifty-three million, two hundred three thousand, three hundred twenty".