1121661732 has 24 divisors (see below), whose sum is σ = 2754959200. Its totient is φ = 354208896.

The previous prime is 1121661703. The next prime is 1121661757. The reversal of 1121661732 is 2371661211.

It is a self number, because there is not a number n which added to its sum of digits gives 1121661732.

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, 2459557 + ... + 2460012.

Almost surely, 2^1121661732 is an apocalyptic number.

1121661732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121661732 is an abundant number, since it is smaller than the sum of its proper divisors (1633297468).

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

1121661732 is a wasteful number, since it uses less digits than its factorization.

1121661732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4919595 (or 4919593 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 1121661732 is about 33491.2187296909. The cubic root of 1121661732 is about 1039.0121697612.

The spelling of 1121661732 in words is "one billion, one hundred twenty-one million, six hundred sixty-one thousand, seven hundred thirty-two".