1231384253 has 8 divisors (see below), whose sum is σ = 1353907200. Its totient is φ = 1110624480.

The previous prime is 1231384241. The next prime is 1231384267. The reversal of 1231384253 is 3524831321.

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 1231384253 - 2⁴ = 1231384237 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 (1231384213) 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, 439328 + ... + 442121.

It is an arithmetic number, because the mean of its divisors is an integer number (169238400).

Almost surely, 2^1231384253 is an apocalyptic number.

It is an amenable number.

1231384253 is a deficient number, since it is larger than the sum of its proper divisors (122522947).

1231384253 is a wasteful number, since it uses less digits than its factorization.

1231384253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881587.

The product of its digits is 17280, while the sum is 32.

The square root of 1231384253 is about 35091.0850929406. The cubic root of 1231384253 is about 1071.8430555330.

The spelling of 1231384253 in words is "one billion, two hundred thirty-one million, three hundred eighty-four thousand, two hundred fifty-three".