11113142540 has 24 divisors (see below), whose sum is σ = 23350633152. Its totient is φ = 4442774400.

The previous prime is 11113142483. The next prime is 11113142561. The reversal of 11113142540 is 4524131111.

It is a super-2 number, since 2×11113142540² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118244 + ... + 190283.

It is an arithmetic number, because the mean of its divisors is an integer number (972943048).

Almost surely, 2^11113142540 is an apocalyptic number.

11113142540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11113142540 is an abundant number, since it is smaller than the sum of its proper divisors (12237490612).

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

11113142540 is a wasteful number, since it uses less digits than its factorization.

11113142540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310337 (or 310335 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 11113142540 its reverse (4524131111), we get a palindrome (15637273651).

The spelling of 11113142540 in words is "eleven billion, one hundred thirteen million, one hundred forty-two thousand, five hundred forty".