1121665300 has 36 divisors (see below), whose sum is σ = 2781731680. Its totient is φ = 384570720.

The previous prime is 1121665289. The next prime is 1121665319. The reversal of 1121665300 is 35661211.

1121665300 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 800490 + ... + 801889.

Almost surely, 2^1121665300 is an apocalyptic number.

1121665300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121665300 is an abundant number, since it is smaller than the sum of its proper divisors (1660066380).

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

1121665300 is a wasteful number, since it uses less digits than its factorization.

1121665300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602400 (or 1602393 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1121665300 is about 33491.2719973428. The cubic root of 1121665300 is about 1039.0132714574.

The spelling of 1121665300 in words is "one billion, one hundred twenty-one million, six hundred sixty-five thousand, three hundred".