1121493980 has 12 divisors (see below), whose sum is σ = 2355137400. Its totient is φ = 448597584.

The previous prime is 1121493979. The next prime is 1121494009. The reversal of 1121493980 is 893941211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28037330 + ... + 28037369.

It is an arithmetic number, because the mean of its divisors is an integer number (196261450).

Almost surely, 2^1121493980 is an apocalyptic number.

1121493980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121493980 is an abundant number, since it is smaller than the sum of its proper divisors (1233643420).

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

1121493980 is a wasteful number, since it uses less digits than its factorization.

1121493980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56074708 (or 56074706 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 1121493980 is about 33488.7142183751. The cubic root of 1121493980 is about 1038.9603701101.

The spelling of 1121493980 in words is "one billion, one hundred twenty-one million, four hundred ninety-three thousand, nine hundred eighty".