11011021401 has 16 divisors (see below), whose sum is σ = 15303212864. Its totient is φ = 7035678144.

The previous prime is 11011021387. The next prime is 11011021421. The reversal of 11011021401 is 10412011011.

It is not a de Polignac number, because 11011021401 - 2¹⁵ = 11010988633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11011021421) 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, 732850 + ... + 747723.

It is an arithmetic number, because the mean of its divisors is an integer number (956450804).

Almost surely, 2^11011021401 is an apocalyptic number.

It is an amenable number.

11011021401 is a deficient number, since it is larger than the sum of its proper divisors (4292191463).

11011021401 is a wasteful number, since it uses less digits than its factorization.

11011021401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480680.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11011021401 its reverse (10412011011), we get a palindrome (21423032412).

The spelling of 11011021401 in words is "eleven billion, eleven million, twenty-one thousand, four hundred one".