11912919300 has 54 divisors (see below), whose sum is σ = 37340386538. Its totient is φ = 3176778240.

The previous prime is 11912919283. The next prime is 11912919301. The reversal of 11912919300 is 391921911.

It can be written as a sum of positive squares in 3 ways, for example, as 5308416 + 11907610884 = 2304^2 + 109122^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (11912919301) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6617389 + ... + 6619188.

Almost surely, 2^11912919300 is an apocalyptic number.

11912919300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11912919300 is an abundant number, since it is smaller than the sum of its proper divisors (25427467238).

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

11912919300 is a wasteful number, since it uses less digits than its factorization.

11912919300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13236597 (or 13236587 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 36.

The spelling of 11912919300 in words is "eleven billion, nine hundred twelve million, nine hundred nineteen thousand, three hundred".