11193537401 has 4 divisors (see below), whose sum is σ = 11194030452. Its totient is φ = 11193044352.

The previous prime is 11193537367. The next prime is 11193537499. The reversal of 11193537401 is 10473539111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6029677801 + 5163859600 = 77651^2 + 71860^2 .

It is a cyclic number.

It is not a de Polignac number, because 11193537401 - 2⁶ = 11193537337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11193533401) 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, 210740 + ... + 258453.

It is an arithmetic number, because the mean of its divisors is an integer number (2798507613).

Almost surely, 2^11193537401 is an apocalyptic number.

It is an amenable number.

11193537401 is a deficient number, since it is larger than the sum of its proper divisors (493051).

11193537401 is an equidigital number, since it uses as much as digits as its factorization.

11193537401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493050.

The product of its (nonzero) digits is 11340, while the sum is 35.

The spelling of 11193537401 in words is "eleven billion, one hundred ninety-three million, five hundred thirty-seven thousand, four hundred one".