11102012140 has 48 divisors (see below), whose sum is σ = 24414747840. Its totient is φ = 4232560640.

The previous prime is 11102012137. The next prime is 11102012143. The reversal of 11102012140 is 4121020111.

It is an interprime number because it is at equal distance from previous prime (11102012137) and next prime (11102012143).

It is a self number, because there is not a number n which added to its sum of digits gives 11102012140.

It is not an unprimeable number, because it can be changed into a prime (11102012143) 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, 86316 + ... + 172204.

It is an arithmetic number, because the mean of its divisors is an integer number (508640580).

Almost surely, 2^11102012140 is an apocalyptic number.

11102012140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11102012140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12207373920).

11102012140 is an abundant number, since it is smaller than the sum of its proper divisors (13312735700).

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

11102012140 is a wasteful number, since it uses less digits than its factorization.

11102012140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86202 (or 86200 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11102012140 its reverse (4121020111), we get a palindrome (15223032251).

The spelling of 11102012140 in words is "eleven billion, one hundred two million, twelve thousand, one hundred forty".