1121197392 has 120 divisors (see below), whose sum is σ = 3623337536. Its totient is φ = 317011968.

The previous prime is 1121197369. The next prime is 1121197397. The reversal of 1121197392 is 2937911211.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121197397) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92043 + ... + 103509.

Almost surely, 2^1121197392 is an apocalyptic number.

1121197392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121197392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1811668768).

1121197392 is an abundant number, since it is smaller than the sum of its proper divisors (2502140144).

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

1121197392 is a wasteful number, since it uses less digits than its factorization.

1121197392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11585 (or 11576 counting only the distinct ones).

The product of its digits is 6804, while the sum is 36.

The square root of 1121197392 is about 33484.2857471979. The cubic root of 1121197392 is about 1038.8687749250.

The spelling of 1121197392 in words is "one billion, one hundred twenty-one million, one hundred ninety-seven thousand, three hundred ninety-two".