210023061247 has 4 divisors (see below), whose sum is σ = 210081291376. Its totient is φ = 209964831120.

The previous prime is 210023061211. The next prime is 210023061293. The reversal of 210023061247 is 742160320012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 210023061247 - 2²³ = 210014672639 is a prime.

It is a super-2 number, since 2×210023061247² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210023061847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29109654 + ... + 29116867.

It is an arithmetic number, because the mean of its divisors is an integer number (52520322844).

Almost surely, 2^210023061247 is an apocalyptic number.

210023061247 is a deficient number, since it is larger than the sum of its proper divisors (58230129).

210023061247 is an equidigital number, since it uses as much as digits as its factorization.

210023061247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58230128.

The product of its (nonzero) digits is 4032, while the sum is 28.

Adding to 210023061247 its reverse (742160320012), we get a palindrome (952183381259).

The spelling of 210023061247 in words is "two hundred ten billion, twenty-three million, sixty-one thousand, two hundred forty-seven".