1151123232 has 48 divisors (see below), whose sum is σ = 3453371712. Its totient is φ = 328892160.

The previous prime is 1151123179. The next prime is 1151123263. The reversal of 1151123232 is 2323211511.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1151123199 and 1151123208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 855819 + ... + 857162.

It is an arithmetic number, because the mean of its divisors is an integer number (71945244).

Almost surely, 2^1151123232 is an apocalyptic number.

1151123232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1151123232 is an abundant number, since it is smaller than the sum of its proper divisors (2302248480).

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

1151123232 is a wasteful number, since it uses less digits than its factorization.

1151123232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713001 (or 1712993 counting only the distinct ones).

The product of its digits is 360, while the sum is 21.

The square root of 1151123232 is about 33928.2070260130. The cubic root of 1151123232 is about 1048.0305431729.

Adding to 1151123232 its reverse (2323211511), we get a palindrome (3474334743).

It can be divided in two parts, 11511 and 23232, that added together give a palindrome (34743).

The spelling of 1151123232 in words is "one billion, one hundred fifty-one million, one hundred twenty-three thousand, two hundred thirty-two".