12006543031 has 16 divisors (see below), whose sum is σ = 14105666880. Its totient is φ = 10003910400.

The previous prime is 12006542983. The next prime is 12006543047. The reversal of 12006543031 is 13034560021.

It is a cyclic number.

It is not a de Polignac number, because 12006543031 - 2²³ = 11998154423 is a prime.

It is a super-2 number, since 2×12006543031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12006542987 and 12006543005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12006543091) 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, 266331 + ... + 308131.

It is an arithmetic number, because the mean of its divisors is an integer number (881604180).

Almost surely, 2^12006543031 is an apocalyptic number.

12006543031 is a deficient number, since it is larger than the sum of its proper divisors (2099123849).

12006543031 is a wasteful number, since it uses less digits than its factorization.

12006543031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42954.

The product of its (nonzero) digits is 2160, while the sum is 25.

The spelling of 12006543031 in words is "twelve billion, six million, five hundred forty-three thousand, thirty-one".