12241431091 has 2 divisors, whose sum is σ = 12241431092. Its totient is φ = 12241431090.

The previous prime is 12241431089. The next prime is 12241431113. The reversal of 12241431091 is 19013414221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12241431091 - 2¹ = 12241431089 is a prime.

Together with 12241431089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12241431061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6120715545 + 6120715546.

It is an arithmetic number, because the mean of its divisors is an integer number (6120715546).

Almost surely, 2^12241431091 is an apocalyptic number.

12241431091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12241431091 is an equidigital number, since it uses as much as digits as its factorization.

12241431091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 12241431091 in words is "twelve billion, two hundred forty-one million, four hundred thirty-one thousand, ninety-one".