11120021401 has 4 divisors (see below), whose sum is σ = 11308496400. Its totient is φ = 10931546404.

The previous prime is 11120021389. The next prime is 11120021417. The reversal of 11120021401 is 10412002111.

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.

It is a cyclic number.

It is not a de Polignac number, because 11120021401 - 2¹¹ = 11120019353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11120021431) 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, 94237411 + ... + 94237528.

It is an arithmetic number, because the mean of its divisors is an integer number (2827124100).

Almost surely, 2^11120021401 is an apocalyptic number.

It is an amenable number.

11120021401 is a deficient number, since it is larger than the sum of its proper divisors (188474999).

11120021401 is an equidigital number, since it uses as much as digits as its factorization.

11120021401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188474998.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11120021401 its reverse (10412002111), we get a palindrome (21532023512).

The spelling of 11120021401 in words is "eleven billion, one hundred twenty million, twenty-one thousand, four hundred one".