231141122089 has 2 divisors, whose sum is σ = 231141122090. Its totient is φ = 231141122088.

The previous prime is 231141122087. The next prime is 231141122111. The reversal of 231141122089 is 980221141132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205496302489 + 25644819600 = 453317^2 + 160140^2 .

It is a cyclic number.

It is not a de Polignac number, because 231141122089 - 2¹ = 231141122087 is a prime.

Together with 231141122087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (231141122087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115570561044 + 115570561045.

It is an arithmetic number, because the mean of its divisors is an integer number (115570561045).

Almost surely, 2^231141122089 is an apocalyptic number.

It is an amenable number.

231141122089 is a deficient number, since it is larger than the sum of its proper divisors (1).

231141122089 is an equidigital number, since it uses as much as digits as its factorization.

231141122089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 34.

The spelling of 231141122089 in words is "two hundred thirty-one billion, one hundred forty-one million, one hundred twenty-two thousand, eighty-nine".