1150235312531 has 4 divisors (see below), whose sum is σ = 1189898599200. Its totient is φ = 1110572025864.

The previous prime is 1150235312519. The next prime is 1150235312543. The reversal of 1150235312531 is 1352135320511.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1150235312519) and next prime (1150235312543).

It is a cyclic number.

It is not a de Polignac number, because 1150235312531 - 2⁶ = 1150235312467 is a prime.

It is a super-2 number, since 2×1150235312531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1150235312561) 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, 19831643291 + ... + 19831643348.

It is an arithmetic number, because the mean of its divisors is an integer number (297474649800).

Almost surely, 2^{1150235312531} is an apocalyptic number.

1150235312531 is a deficient number, since it is larger than the sum of its proper divisors (39663286669).

1150235312531 is an equidigital number, since it uses as much as digits as its factorization.

1150235312531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39663286668.

The product of its (nonzero) digits is 13500, while the sum is 32.

The spelling of 1150235312531 in words is "one trillion, one hundred fifty billion, two hundred thirty-five million, three hundred twelve thousand, five hundred thirty-one".