231111133190929 has 2 divisors, whose sum is σ = 231111133190930. Its totient is φ = 231111133190928.

The previous prime is 231111133190867. The next prime is 231111133190989. The reversal of 231111133190929 is 929091331111132.

231111133190929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180996796785025 + 50114336405904 = 13453505^2 + 7079148^2 .

It is a cyclic number.

It is not a de Polignac number, because 231111133190929 - 2⁹ = 231111133190417 is a prime.

It is not a weakly prime, because it can be changed into another prime (231111133190989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115555566595464 + 115555566595465.

It is an arithmetic number, because the mean of its divisors is an integer number (115555566595465).

Almost surely, 2^{231111133190929} is an apocalyptic number.

It is an amenable number.

231111133190929 is a deficient number, since it is larger than the sum of its proper divisors (1).

231111133190929 is an equidigital number, since it uses as much as digits as its factorization.

231111133190929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78732, while the sum is 46.

The spelling of 231111133190929 in words is "two hundred thirty-one trillion, one hundred eleven billion, one hundred thirty-three million, one hundred ninety thousand, nine hundred twenty-nine".