210740323 has 2 divisors, whose sum is σ = 210740324. Its totient is φ = 210740322.

The previous prime is 210740311. The next prime is 210740351. The reversal of 210740323 is 323047012.

210740323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210740323 is a prime.

It is a super-2 number, since 2×210740323² = 88822967476288658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210740294 and 210740303.

It is not a weakly prime, because it can be changed into another prime (210740923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105370161 + 105370162.

It is an arithmetic number, because the mean of its divisors is an integer number (105370162).

Almost surely, 2^210740323 is an apocalyptic number.

210740323 is a deficient number, since it is larger than the sum of its proper divisors (1).

210740323 is an equidigital number, since it uses as much as digits as its factorization.

210740323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 210740323 is about 14516.8978435477. The cubic root of 210740323 is about 595.0898557890.

Adding to 210740323 its reverse (323047012), we get a palindrome (533787335).

The spelling of 210740323 in words is "two hundred ten million, seven hundred forty thousand, three hundred twenty-three".