1152240031 has 4 divisors (see below), whose sum is σ = 1158900552. Its totient is φ = 1145579512.

The previous prime is 1152239987. The next prime is 1152240107. The reversal of 1152240031 is 1300422511.

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 1152240031 - 2¹⁷ = 1152108959 is a prime.

It is a super-2 number, since 2×1152240031² = 2655314178077761922, 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 = 1152239990 and 1152240008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152243031) 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, 3330001 + ... + 3330346.

It is an arithmetic number, because the mean of its divisors is an integer number (289725138).

Almost surely, 2^1152240031 is an apocalyptic number.

1152240031 is a deficient number, since it is larger than the sum of its proper divisors (6660521).

1152240031 is an equidigital number, since it uses as much as digits as its factorization.

1152240031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6660520.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1152240031 is about 33944.6613033626. The cubic root of 1152240031 is about 1048.3693604026.

Adding to 1152240031 its reverse (1300422511), we get a palindrome (2452662542).

The spelling of 1152240031 in words is "one billion, one hundred fifty-two million, two hundred forty thousand, thirty-one".