123142043 has 2 divisors, whose sum is σ = 123142044. Its totient is φ = 123142042.

The previous prime is 123142009. The next prime is 123142049. The reversal of 123142043 is 340241321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123142043 - 2⁶ = 123141979 is a prime.

It is not a weakly prime, because it can be changed into another prime (123142049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61571021 + 61571022.

It is an arithmetic number, because the mean of its divisors is an integer number (61571022).

Almost surely, 2^123142043 is an apocalyptic number.

123142043 is a deficient number, since it is larger than the sum of its proper divisors (1).

123142043 is an equidigital number, since it uses as much as digits as its factorization.

123142043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 123142043 is about 11096.9384516631. The cubic root of 123142043 is about 497.5103478400.

Adding to 123142043 its reverse (340241321), we get a palindrome (463383364).

The spelling of 123142043 in words is "one hundred twenty-three million, one hundred forty-two thousand, forty-three".