1121613432 has 32 divisors (see below), whose sum is σ = 2821246080. Its totient is φ = 371576160.

The previous prime is 1121613407. The next prime is 1121613487. The reversal of 1121613432 is 2343161211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 139444 + ... + 147267.

It is an arithmetic number, because the mean of its divisors is an integer number (88163940).

Almost surely, 2^1121613432 is an apocalyptic number.

1121613432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121613432 is an abundant number, since it is smaller than the sum of its proper divisors (1699632648).

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

1121613432 is a wasteful number, since it uses less digits than its factorization.

1121613432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286883 (or 286879 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 1121613432 is about 33490.4976373896. The cubic root of 1121613432 is about 1038.9972558745.

Adding to 1121613432 its reverse (2343161211), we get a palindrome (3464774643).

The spelling of 1121613432 in words is "one billion, one hundred twenty-one million, six hundred thirteen thousand, four hundred thirty-two".