11111032001 has 4 divisors (see below), whose sum is σ = 11146759104. Its totient is φ = 11075304900.

The previous prime is 11111031973. The next prime is 11111032003. The reversal of 11111032001 is 10023011111.

It is a happy number.

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: 10023011111 = 19469 ⋅514819.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11111032001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11111032003) 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, 17863085 + ... + 17863706.

It is an arithmetic number, because the mean of its divisors is an integer number (2786689776).

Almost surely, 2^11111032001 is an apocalyptic number.

It is an amenable number.

11111032001 is a deficient number, since it is larger than the sum of its proper divisors (35727103).

11111032001 is an equidigital number, since it uses as much as digits as its factorization.

11111032001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35727102.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 11111032001 its reverse (10023011111), we get a palindrome (21134043112).

The spelling of 11111032001 in words is "eleven billion, one hundred eleven million, thirty-two thousand, one".