1152313331 has 4 divisors (see below), whose sum is σ = 1240952832. Its totient is φ = 1063673832.

The previous prime is 1152313313. The next prime is 1152313339. The reversal of 1152313331 is 1333132511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1333132511 = 19 ⋅70164869.

It is not a de Polignac number, because 1152313331 - 2²⁶ = 1085204467 is a prime.

It is a super-2 number, since 2×1152313331² = 2655652025600631122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1152313297 and 1152313306.

It is not an unprimeable number, because it can be changed into a prime (1152313339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44319731 + ... + 44319756.

It is an arithmetic number, because the mean of its divisors is an integer number (310238208).

Almost surely, 2^1152313331 is an apocalyptic number.

1152313331 is a deficient number, since it is larger than the sum of its proper divisors (88639501).

1152313331 is an equidigital number, since it uses as much as digits as its factorization.

1152313331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88639500.

The product of its digits is 810, while the sum is 23.

The square root of 1152313331 is about 33945.7409846950. The cubic root of 1152313331 is about 1048.3915906794.

Adding to 1152313331 its reverse (1333132511), we get a palindrome (2485445842).

The spelling of 1152313331 in words is "one billion, one hundred fifty-two million, three hundred thirteen thousand, three hundred thirty-one".