11701280 has 24 divisors (see below), whose sum is σ = 27644652. Its totient is φ = 4680448.

The previous prime is 11701279. The next prime is 11701301. The reversal of 11701280 is 8210711.

It can be written as a sum of positive squares in 2 ways, for example, as 11641744 + 59536 = 3412^2 + 244^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36407 + ... + 36726.

Almost surely, 2^11701280 is an apocalyptic number.

11701280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11701280 is an abundant number, since it is smaller than the sum of its proper divisors (15943372).

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

11701280 is an equidigital number, since it uses as much as digits as its factorization.

11701280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73148 (or 73140 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 11701280 is about 3420.7133758911. The cubic root of 11701280 is about 227.0271465138.

Adding to 11701280 its reverse (8210711), we get a palindrome (19911991).

The spelling of 11701280 in words is "eleven million, seven hundred one thousand, two hundred eighty".