12000002031 has 12 divisors (see below), whose sum is σ = 17334471960. Its totient is φ = 7999477200.

The previous prime is 12000002011. The next prime is 12000002081. The reversal of 12000002031 is 13020000021.

It is a happy number.

It is not a de Polignac number, because 12000002031 - 2⁵ = 12000001999 is a prime.

It is a super-3 number, since 3×12000002031³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000002011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143556 + ... + 211206.

It is an arithmetic number, because the mean of its divisors is an integer number (1444539330).

Almost surely, 2^12000002031 is an apocalyptic number.

12000002031 is a deficient number, since it is larger than the sum of its proper divisors (5334469929).

12000002031 is a wasteful number, since it uses less digits than its factorization.

12000002031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87366 (or 87363 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 12000002031 its reverse (13020000021), we get a palindrome (25020002052).

The spelling of 12000002031 in words is "twelve billion, two thousand, thirty-one".