210020011007 has 4 divisors (see below), whose sum is σ = 210020944200. Its totient is φ = 210019077816.

The previous prime is 210020010989. The next prime is 210020011027. The reversal of 210020011007 is 700110020012.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 210020011007 - 2²⁶ = 209952902143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210020010982 and 210020011000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210020011027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101744 + ... + 656042.

It is an arithmetic number, because the mean of its divisors is an integer number (52505236050).

Almost surely, 2^210020011007 is an apocalyptic number.

210020011007 is a deficient number, since it is larger than the sum of its proper divisors (933193).

210020011007 is an equidigital number, since it uses as much as digits as its factorization.

210020011007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933192.

The product of its (nonzero) digits is 28, while the sum is 14.

Adding to 210020011007 its reverse (700110020012), we get a palindrome (910130031019).

The spelling of 210020011007 in words is "two hundred ten billion, twenty million, eleven thousand, seven".