11141720 has 16 divisors (see below), whose sum is σ = 25068960. Its totient is φ = 4456672.

The previous prime is 11141707. The next prime is 11141723. The reversal of 11141720 is 2714111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11141723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139232 + ... + 139311.

It is an arithmetic number, because the mean of its divisors is an integer number (1566810).

Almost surely, 2^11141720 is an apocalyptic number.

11141720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11141720 is an abundant number, since it is smaller than the sum of its proper divisors (13927240).

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

11141720 is a wasteful number, since it uses less digits than its factorization.

11141720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278554 (or 278550 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 11141720 is about 3337.9215089633. The cubic root of 11141720 is about 223.3490348110.

Adding to 11141720 its reverse (2714111), we get a palindrome (13855831).

The spelling of 11141720 in words is "eleven million, one hundred forty-one thousand, seven hundred twenty".