12011440111031 has 4 divisors (see below), whose sum is σ = 12011451480000. Its totient is φ = 12011428742064.

The previous prime is 12011440110977. The next prime is 12011440111043. The reversal of 12011440111031 is 13011104411021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12011440111031 is a prime.

It is a super-2 number, since 2×12011440111031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12011440110994 and 12011440111012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011440113031) 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, 3916406 + ... + 6273843.

It is an arithmetic number, because the mean of its divisors is an integer number (3002862870000).

Almost surely, 2^{12011440111031} is an apocalyptic number.

12011440111031 is a deficient number, since it is larger than the sum of its proper divisors (11368969).

12011440111031 is a wasteful number, since it uses less digits than its factorization.

12011440111031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11368968.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 12011440111031 its reverse (13011104411021), we get a palindrome (25022544522052).

The spelling of 12011440111031 in words is "twelve trillion, eleven billion, four hundred forty million, one hundred eleven thousand, thirty-one".