12065656031 has 16 divisors (see below), whose sum is σ = 14180509728. Its totient is φ = 10121116800.

The previous prime is 12065656027. The next prime is 12065656037. The reversal of 12065656031 is 13065656021.

It is a cyclic number.

It is not a de Polignac number, because 12065656031 - 2² = 12065656027 is a prime.

It is a super-3 number, since 3×12065656031³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 12065655982 and 12065656000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12065656037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390821 + ... + 420561.

It is an arithmetic number, because the mean of its divisors is an integer number (886281858).

Almost surely, 2^12065656031 is an apocalyptic number.

12065656031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12065656031 is a deficient number, since it is larger than the sum of its proper divisors (2114853697).

12065656031 is a wasteful number, since it uses less digits than its factorization.

12065656031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32602.

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 12065656031 in words is "twelve billion, sixty-five million, six hundred fifty-six thousand, thirty-one".