1123481900 has 36 divisors (see below), whose sum is σ = 2445057048. Its totient is φ = 448083840.

The previous prime is 1123481869. The next prime is 1123481999. The reversal of 1123481900 is 91843211.

It is a super-2 number, since 2×1123481900² = 2524423159255220000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18512 + ... + 50888.

Almost surely, 2^1123481900 is an apocalyptic number.

1123481900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123481900 is an abundant number, since it is smaller than the sum of its proper divisors (1321575148).

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

1123481900 is a wasteful number, since it uses less digits than its factorization.

1123481900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32738 (or 32731 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1123481900 is about 33518.3815241727. The cubic root of 1123481900 is about 1039.5738823840.

The spelling of 1123481900 in words is "one billion, one hundred twenty-three million, four hundred eighty-one thousand, nine hundred".