1150212312 has 48 divisors (see below), whose sum is σ = 3230540040. Its totient is φ = 383403456.

The previous prime is 1150212281. The next prime is 1150212317. The reversal of 1150212312 is 2132120511.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150212317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 293893 + ... + 297780.

Almost surely, 2^1150212312 is an apocalyptic number.

1150212312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1150212312 is an abundant number, since it is smaller than the sum of its proper divisors (2080327728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1150212312 is an equidigital number, since it uses as much as digits as its factorization.

1150212312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591694 (or 591678 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1150212312 is about 33914.7801408177. The cubic root of 1150212312 is about 1047.7540237157.

Adding to 1150212312 its reverse (2132120511), we get a palindrome (3282332823).

The spelling of 1150212312 in words is "one billion, one hundred fifty million, two hundred twelve thousand, three hundred twelve".