210123202339 has 2 divisors, whose sum is σ = 210123202340. Its totient is φ = 210123202338.

The previous prime is 210123202283. The next prime is 210123202369. The reversal of 210123202339 is 933202321012.

210123202339 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 210123202339 - 2²⁵ = 210089647907 is a prime.

It is a super-2 number, since 2×210123202339² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (210123202369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105061601169 + 105061601170.

It is an arithmetic number, because the mean of its divisors is an integer number (105061601170).

Almost surely, 2^210123202339 is an apocalyptic number.

210123202339 is a deficient number, since it is larger than the sum of its proper divisors (1).

210123202339 is an equidigital number, since it uses as much as digits as its factorization.

210123202339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 210123202339 in words is "two hundred ten billion, one hundred twenty-three million, two hundred two thousand, three hundred thirty-nine".