12111133001 has 4 divisors (see below), whose sum is σ = 13212145104. Its totient is φ = 11010120900.

The previous prime is 12111132959. The next prime is 12111133031. The reversal of 12111133001 is 10033111121.

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.

It is a cyclic number.

It is not a de Polignac number, because 12111133001 - 2⁶ = 12111132937 is a prime.

It is a super-2 number, since 2×12111133001² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111133031) 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, 550506035 + ... + 550506056.

It is an arithmetic number, because the mean of its divisors is an integer number (3303036276).

Almost surely, 2^12111133001 is an apocalyptic number.

12111133001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12111133001 is a deficient number, since it is larger than the sum of its proper divisors (1101012103).

12111133001 is a wasteful number, since it uses less digits than its factorization.

12111133001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101012102.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 12111133001 its reverse (10033111121), we get a palindrome (22144244122).

The spelling of 12111133001 in words is "twelve billion, one hundred eleven million, one hundred thirty-three thousand, one".