12011210231 has 2 divisors, whose sum is σ = 12011210232. Its totient is φ = 12011210230.

The previous prime is 12011210203. The next prime is 12011210251. The reversal of 12011210231 is 13201211021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12011210231 - 2¹⁰ = 12011209207 is a prime.

It is a super-2 number, since 2×12011210231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011210251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005605115 + 6005605116.

It is an arithmetic number, because the mean of its divisors is an integer number (6005605116).

Almost surely, 2^12011210231 is an apocalyptic number.

12011210231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011210231 is an equidigital number, since it uses as much as digits as its factorization.

12011210231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12011210231 its reverse (13201211021), we get a palindrome (25212421252).

The spelling of 12011210231 in words is "twelve billion, eleven million, two hundred ten thousand, two hundred thirty-one".