1204253131 has 4 divisors (see below), whose sum is σ = 1205486712. Its totient is φ = 1203019552.

The previous prime is 1204253093. The next prime is 1204253143. The reversal of 1204253131 is 1313524021.

It is a happy number.

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 1204253131 - 2¹⁵ = 1204220363 is a prime.

It is a super-2 number, since 2×1204253131² = 2900451207046606322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1204253161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 615325 + ... + 617278.

It is an arithmetic number, because the mean of its divisors is an integer number (301371678).

Almost surely, 2^1204253131 is an apocalyptic number.

1204253131 is a deficient number, since it is larger than the sum of its proper divisors (1233581).

1204253131 is an equidigital number, since it uses as much as digits as its factorization.

1204253131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233580.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1204253131 is about 34702.3505111685. The cubic root of 1204253131 is about 1063.9125405692.

Adding to 1204253131 its reverse (1313524021), we get a palindrome (2517777152).

The spelling of 1204253131 in words is "one billion, two hundred four million, two hundred fifty-three thousand, one hundred thirty-one".