1231798053 has 36 divisors (see below), whose sum is σ = 1774538592. Its totient is φ = 759859200.

The previous prime is 1231798039. The next prime is 1231798079. The reversal of 1231798053 is 3508971321.

It is not a de Polignac number, because 1231798053 - 2¹⁷ = 1231666981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231798033) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8157528 + ... + 8157678.

Almost surely, 2^1231798053 is an apocalyptic number.

It is an amenable number.

1231798053 is a deficient number, since it is larger than the sum of its proper divisors (542740539).

1231798053 is an equidigital number, since it uses as much as digits as its factorization.

1231798053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 1231798053 is about 35096.9806821043. The cubic root of 1231798053 is about 1071.9631044353.

The spelling of 1231798053 in words is "one billion, two hundred thirty-one million, seven hundred ninety-eight thousand, fifty-three".