210123967 has 2 divisors, whose sum is σ = 210123968. Its totient is φ = 210123966.

The previous prime is 210123931. The next prime is 210123973. The reversal of 210123967 is 769321012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210123967 - 2¹⁹ = 209599679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210123917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105061983 + 105061984.

It is an arithmetic number, because the mean of its divisors is an integer number (105061984).

Almost surely, 2^210123967 is an apocalyptic number.

210123967 is a deficient number, since it is larger than the sum of its proper divisors (1).

210123967 is an equidigital number, since it uses as much as digits as its factorization.

210123967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 210123967 is about 14495.6533829973. The cubic root of 210123967 is about 594.5091326141.

Adding to 210123967 its reverse (769321012), we get a palindrome (979444979).

The spelling of 210123967 in words is "two hundred ten million, one hundred twenty-three thousand, nine hundred sixty-seven".