12010215231 has 48 divisors (see below), whose sum is σ = 20130259968. Its totient is φ = 6758035200.

The previous prime is 12010215197. The next prime is 12010215251. The reversal of 12010215231 is 13251201021.

12010215231 is a `hidden beast` number, since 120 + 1 + 0 + 21 + 523 + 1 = 666.

It is not a de Polignac number, because 12010215231 - 2¹⁴ = 12010198847 is a prime.

It is a super-2 number, since 2×12010215231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010215251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6757815 + ... + 6759591.

It is an arithmetic number, because the mean of its divisors is an integer number (419380416).

Almost surely, 2^12010215231 is an apocalyptic number.

12010215231 is a deficient number, since it is larger than the sum of its proper divisors (8120044737).

12010215231 is a wasteful number, since it uses less digits than its factorization.

12010215231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372 (or 3369 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 12010215231 its reverse (13251201021), we get a palindrome (25261416252).

The spelling of 12010215231 in words is "twelve billion, ten million, two hundred fifteen thousand, two hundred thirty-one".