112143149021 has 2 divisors, whose sum is σ = 112143149022. Its totient is φ = 112143149020.

The previous prime is 112143149017. The next prime is 112143149023. The reversal of 112143149021 is 120941341211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57487255225 + 54655893796 = 239765^2 + 233786^2 .

It is a cyclic number.

It is not a de Polignac number, because 112143149021 - 2² = 112143149017 is a prime.

Together with 112143149023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112143149023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56071574510 + 56071574511.

It is an arithmetic number, because the mean of its divisors is an integer number (56071574511).

Almost surely, 2^112143149021 is an apocalyptic number.

It is an amenable number.

112143149021 is a deficient number, since it is larger than the sum of its proper divisors (1).

112143149021 is an equidigital number, since it uses as much as digits as its factorization.

112143149021 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 29.

The spelling of 112143149021 in words is "one hundred twelve billion, one hundred forty-three million, one hundred forty-nine thousand, twenty-one".