11140123140 has 72 divisors (see below), whose sum is σ = 35260924608. Its totient is φ = 2841537600.

The previous prime is 11140123139. The next prime is 11140123151. The reversal of 11140123140 is 4132104111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1341286 + ... + 1349565.

It is an arithmetic number, because the mean of its divisors is an integer number (489735064).

Almost surely, 2^11140123140 is an apocalyptic number.

11140123140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11140123140 is an abundant number, since it is smaller than the sum of its proper divisors (24120801468).

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

11140123140 is a wasteful number, since it uses less digits than its factorization.

11140123140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2690889 (or 2690884 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11140123140 its reverse (4132104111), we get a palindrome (15272227251).

The spelling of 11140123140 in words is "eleven billion, one hundred forty million, one hundred twenty-three thousand, one hundred forty".