12001111030031 has 32 divisors (see below), whose sum is σ = 12817549237248. Its totient is φ = 11221334870400.

The previous prime is 12001111030003. The next prime is 12001111030037. The reversal of 12001111030031 is 13003011110021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12001111030031 - 2¹⁰ = 12001111029007 is a prime.

It is a super-2 number, since 2×12001111030031² (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 = 12001111029988 and 12001111030015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001111030037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23271881 + ... + 23781981.

It is an arithmetic number, because the mean of its divisors is an integer number (400548413664).

Almost surely, 2^{12001111030031} is an apocalyptic number.

12001111030031 is a deficient number, since it is larger than the sum of its proper divisors (816438207217).

12001111030031 is a wasteful number, since it uses less digits than its factorization.

12001111030031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510431.

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

Adding to 12001111030031 its reverse (13003011110021), we get a palindrome (25004122140052).

The spelling of 12001111030031 in words is "twelve trillion, one billion, one hundred eleven million, thirty thousand, thirty-one".