120823123 has 2 divisors, whose sum is σ = 120823124. Its totient is φ = 120823122.

The previous prime is 120823081. The next prime is 120823139. The reversal of 120823123 is 321328021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120823123 - 2¹⁷ = 120692051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120823094 and 120823103.

It is not a weakly prime, because it can be changed into another prime (120823823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60411561 + 60411562.

It is an arithmetic number, because the mean of its divisors is an integer number (60411562).

Almost surely, 2^120823123 is an apocalyptic number.

120823123 is a deficient number, since it is larger than the sum of its proper divisors (1).

120823123 is an equidigital number, since it uses as much as digits as its factorization.

120823123 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 22.

The square root of 120823123 is about 10991.9571960593. The cubic root of 120823123 is about 494.3676215320.

The spelling of 120823123 in words is "one hundred twenty million, eight hundred twenty-three thousand, one hundred twenty-three".