12011100140 has 48 divisors (see below), whose sum is σ = 27187036128. Its totient is φ = 4431035904.

The previous prime is 12011100121. The next prime is 12011100149. The reversal of 12011100140 is 4100111021.

It is not an unprimeable number, because it can be changed into a prime (12011100149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290819 + ... + 329541.

It is an arithmetic number, because the mean of its divisors is an integer number (566396586).

Almost surely, 2^12011100140 is an apocalyptic number.

12011100140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011100140 is an abundant number, since it is smaller than the sum of its proper divisors (15175935988).

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

12011100140 is a wasteful number, since it uses less digits than its factorization.

12011100140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39938 (or 39936 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12011100140 its reverse (4100111021), we get a palindrome (16111211161).

The spelling of 12011100140 in words is "twelve billion, eleven million, one hundred thousand, one hundred forty".