20101010207 has 4 divisors (see below), whose sum is σ = 20794148520. Its totient is φ = 19407871896.

The previous prime is 20101010201. The next prime is 20101010213. The reversal of 20101010207 is 70201010102.

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

It is an interprime number because it is at equal distance from previous prime (20101010201) and next prime (20101010213).

It is a cyclic number.

It is not a de Polignac number, because 20101010207 - 2⁴ = 20101010191 is a prime.

It is a super-2 number, since 2×20101010207² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20101010191 and 20101010200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101010201) 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, 346569113 + ... + 346569170.

It is an arithmetic number, because the mean of its divisors is an integer number (5198537130).

Almost surely, 2^20101010207 is an apocalyptic number.

20101010207 is a deficient number, since it is larger than the sum of its proper divisors (693138313).

20101010207 is an equidigital number, since it uses as much as digits as its factorization.

20101010207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693138312.

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

Adding to 20101010207 its reverse (70201010102), we get a palindrome (90302020309).

The spelling of 20101010207 in words is "twenty billion, one hundred one million, ten thousand, two hundred seven".