12400234211 has 2 divisors, whose sum is σ = 12400234212. Its totient is φ = 12400234210.

The previous prime is 12400234183. The next prime is 12400234247. The reversal of 12400234211 is 11243200421.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12400234211 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12400234261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6200117105 + 6200117106.

It is an arithmetic number, because the mean of its divisors is an integer number (6200117106).

Almost surely, 2^12400234211 is an apocalyptic number.

12400234211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12400234211 is an equidigital number, since it uses as much as digits as its factorization.

12400234211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12400234211 its reverse (11243200421), we get a palindrome (23643434632).

The spelling of 12400234211 in words is "twelve billion, four hundred million, two hundred thirty-four thousand, two hundred eleven".