1253323511 has 4 divisors (see below), whose sum is σ = 1367262024. Its totient is φ = 1139385000.

The previous prime is 1253323501. The next prime is 1253323531. The reversal of 1253323511 is 1153233521.

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 1253323511 - 2³⁰ = 179581687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253323501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56969240 + ... + 56969261.

It is an arithmetic number, because the mean of its divisors is an integer number (341815506).

Almost surely, 2^1253323511 is an apocalyptic number.

1253323511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1253323511 is a deficient number, since it is larger than the sum of its proper divisors (113938513).

1253323511 is a wasteful number, since it uses less digits than its factorization.

1253323511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113938512.

The product of its digits is 2700, while the sum is 26.

The square root of 1253323511 is about 35402.3094020715. The cubic root of 1253323511 is about 1078.1712051230.

The spelling of 1253323511 in words is "one billion, two hundred fifty-three million, three hundred twenty-three thousand, five hundred eleven".