1121399982 has 12 divisors (see below), whose sum is σ = 2429700000. Its totient is φ = 373799988.

The previous prime is 1121399977. The next prime is 1121399987. The reversal of 1121399982 is 2899931211.

1121399982 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1121399977) and next prime (1121399987).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121399987) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31149982 + ... + 31150017.

It is an arithmetic number, because the mean of its divisors is an integer number (202475000).

Almost surely, 2^1121399982 is an apocalyptic number.

1121399982 is an abundant number, since it is smaller than the sum of its proper divisors (1308300018).

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

1121399982 is a wasteful number, since it uses less digits than its factorization.

1121399982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62300007 (or 62300004 counting only the distinct ones).

The product of its digits is 69984, while the sum is 45.

The square root of 1121399982 is about 33487.3107609435. The cubic root of 1121399982 is about 1038.9313424835.

The spelling of 1121399982 in words is "one billion, one hundred twenty-one million, three hundred ninety-nine thousand, nine hundred eighty-two".