1180121140 has 48 divisors (see below), whose sum is σ = 2706076800. Its totient is φ = 428734080.

The previous prime is 1180121123. The next prime is 1180121153. The reversal of 1180121140 is 411210811.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339049 + ... + 342511.

It is an arithmetic number, because the mean of its divisors is an integer number (56376600).

Almost surely, 2^1180121140 is an apocalyptic number.

1180121140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1180121140 is an abundant number, since it is smaller than the sum of its proper divisors (1525955660).

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

1180121140 is a wasteful number, since it uses less digits than its factorization.

1180121140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5032 (or 5030 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

The square root of 1180121140 is about 34352.8912902539. The cubic root of 1180121140 is about 1056.7579653997.

Adding to 1180121140 its reverse (411210811), we get a palindrome (1591331951).

The spelling of 1180121140 in words is "one billion, one hundred eighty million, one hundred twenty-one thousand, one hundred forty".