12011311120031 has 8 divisors (see below), whose sum is σ = 12721872098880. Its totient is φ = 11301196059648.

The previous prime is 12011311120009. The next prime is 12011311120057. The reversal of 12011311120031 is 13002111311021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12011311120031 is a prime.

It is a super-2 number, since 2×12011311120031² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12011311119991 and 12011311120009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011311120231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111424151 + ... + 111531896.

It is an arithmetic number, because the mean of its divisors is an integer number (1590234012360).

Almost surely, 2^{12011311120031} is an apocalyptic number.

12011311120031 is a deficient number, since it is larger than the sum of its proper divisors (710560978849).

12011311120031 is a wasteful number, since it uses less digits than its factorization.

12011311120031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222959233.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 12011311120031 its reverse (13002111311021), we get a palindrome (25013422431052).

The spelling of 12011311120031 in words is "twelve trillion, eleven billion, three hundred eleven million, one hundred twenty thousand, thirty-one".