1121481516990 has 64 divisors (see below), whose sum is σ = 2764918162944. Its totient is φ = 290913959808.

The previous prime is 1121481516979. The next prime is 1121481516997. The reversal of 1121481516990 is 996151841211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121481516997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4958757 + ... + 5179983.

It is an arithmetic number, because the mean of its divisors is an integer number (43201846296).

Almost surely, 2^{1121481516990} is an apocalyptic number.

1121481516990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121481516990 is an abundant number, since it is smaller than the sum of its proper divisors (1643436645954).

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

1121481516990 is a wasteful number, since it uses less digits than its factorization.

1121481516990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225841.

The product of its (nonzero) digits is 155520, while the sum is 48.

The spelling of 1121481516990 in words is "one trillion, one hundred twenty-one billion, four hundred eighty-one million, five hundred sixteen thousand, nine hundred ninety".