210102020959 has 2 divisors, whose sum is σ = 210102020960. Its totient is φ = 210102020958.

The previous prime is 210102020911. The next prime is 210102021013. The reversal of 210102020959 is 959020201012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210102020959 - 2⁷ = 210102020831 is a prime.

It is a super-2 number, since 2×210102020959² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 210102020959.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210102020759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105051010479 + 105051010480.

It is an arithmetic number, because the mean of its divisors is an integer number (105051010480).

Almost surely, 2^210102020959 is an apocalyptic number.

210102020959 is a deficient number, since it is larger than the sum of its proper divisors (1).

210102020959 is an equidigital number, since it uses as much as digits as its factorization.

210102020959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 31.

The spelling of 210102020959 in words is "two hundred ten billion, one hundred two million, twenty thousand, nine hundred fifty-nine".