11021401 has 4 divisors (see below), whose sum is σ = 11176704. Its totient is φ = 10866100.

The previous prime is 11021383. The next prime is 11021407. The reversal of 11021401 is 10412011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10412011 = 131 ⋅79481.

It is a cyclic number.

It is not a de Polignac number, because 11021401 - 2¹³ = 11013209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11021407) 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, 77545 + ... + 77686.

It is an arithmetic number, because the mean of its divisors is an integer number (2794176).

Almost surely, 2^11021401 is an apocalyptic number.

It is an amenable number.

11021401 is a deficient number, since it is larger than the sum of its proper divisors (155303).

11021401 is an equidigital number, since it uses as much as digits as its factorization.

11021401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155302.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 11021401 is about 3319.8495447836. The cubic root of 11021401 is about 222.5421441021.

Adding to 11021401 its reverse (10412011), we get a palindrome (21433412).

The spelling of 11021401 in words is "eleven million, twenty-one thousand, four hundred one".