43100120123 has 2 divisors, whose sum is σ = 43100120124. Its totient is φ = 43100120122.

The previous prime is 43100120101. The next prime is 43100120143. The reversal of 43100120123 is 32102100134.

43100120123 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 is a cyclic number.

It is not a de Polignac number, because 43100120123 - 2⁶ = 43100120059 is a prime.

It is not a weakly prime, because it can be changed into another prime (43100120143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21550060061 + 21550060062.

It is an arithmetic number, because the mean of its divisors is an integer number (21550060062).

Almost surely, 2^43100120123 is an apocalyptic number.

43100120123 is a deficient number, since it is larger than the sum of its proper divisors (1).

43100120123 is an equidigital number, since it uses as much as digits as its factorization.

43100120123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 43100120123 its reverse (32102100134), we get a palindrome (75202220257).

The spelling of 43100120123 in words is "forty-three billion, one hundred million, one hundred twenty thousand, one hundred twenty-three".