231141122099 has 6 divisors (see below), whose sum is σ = 238837809780. Its totient is φ = 223684955940.

The previous prime is 231141122089. The next prime is 231141122111. The reversal of 231141122099 is 990221141132.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-231141122099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231141122059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 120259769 + ... + 120261690.

It is an arithmetic number, because the mean of its divisors is an integer number (39806301630).

Almost surely, 2^231141122099 is an apocalyptic number.

231141122099 is a deficient number, since it is larger than the sum of its proper divisors (7696687681).

231141122099 is an equidigital number, since it uses as much as digits as its factorization.

231141122099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240521521 (or 240521490 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 35.

The spelling of 231141122099 in words is "two hundred thirty-one billion, one hundred forty-one million, one hundred twenty-two thousand, ninety-nine".