11040120401 has 4 divisors (see below), whose sum is σ = 11041800000. Its totient is φ = 11038440804.

The previous prime is 11040120397. The next prime is 11040120407. The reversal of 11040120401 is 10402104011.

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: 10402104011 = 13 ⋅800161847.

It is a cyclic number.

It is not a de Polignac number, because 11040120401 - 2² = 11040120397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11040120407) 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, 829901 + ... + 843098.

It is an arithmetic number, because the mean of its divisors is an integer number (2760450000).

Almost surely, 2^11040120401 is an apocalyptic number.

It is an amenable number.

11040120401 is a deficient number, since it is larger than the sum of its proper divisors (1679599).

11040120401 is an equidigital number, since it uses as much as digits as its factorization.

11040120401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679598.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11040120401 its reverse (10402104011), we get a palindrome (21442224412).

The spelling of 11040120401 in words is "eleven billion, forty million, one hundred twenty thousand, four hundred one".