11020401 has 16 divisors (see below), whose sum is σ = 18659200. Its totient is φ = 6297264.

The previous prime is 11020397. The next prime is 11020411. The reversal of 11020401 is 10402011.

It is a happy number.

It is not a de Polignac number, because 11020401 - 2² = 11020397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11020411) 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, 28966 + ... + 29343.

It is an arithmetic number, because the mean of its divisors is an integer number (1166200).

Almost surely, 2^11020401 is an apocalyptic number.

It is an amenable number.

11020401 is a deficient number, since it is larger than the sum of its proper divisors (7638799).

11020401 is an equidigital number, since it uses as much as digits as its factorization.

11020401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58325 (or 58319 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 11020401 is about 3319.6989321322. The cubic root of 11020401 is about 222.5354132919.

Adding to 11020401 its reverse (10402011), we get a palindrome (21422412).

The spelling of 11020401 in words is "eleven million, twenty thousand, four hundred one".