12011322112031 has 4 divisors (see below), whose sum is σ = 13103260485864. Its totient is φ = 10919383738200.

The previous prime is 12011322111977. The next prime is 12011322112033. The reversal of 12011322112031 is 13021122311021.

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

It is a cyclic number.

It is not a de Polignac number, because 12011322112031 - 2²² = 12011317917727 is a prime.

It is a super-2 number, since 2×12011322112031² (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 = 12011322111994 and 12011322112012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011322112033) 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, 545969186900 + ... + 545969186921.

It is an arithmetic number, because the mean of its divisors is an integer number (3275815121466).

Almost surely, 2^{12011322112031} is an apocalyptic number.

12011322112031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12011322112031 is a deficient number, since it is larger than the sum of its proper divisors (1091938373833).

12011322112031 is a wasteful number, since it uses less digits than its factorization.

12011322112031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091938373832.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 12011322112031 its reverse (13021122311021), we get a palindrome (25032444423052).

The spelling of 12011322112031 in words is "twelve trillion, eleven billion, three hundred twenty-two million, one hundred twelve thousand, thirty-one".