10101020203 has 6 divisors (see below), whose sum is σ = 10730149796. Its totient is φ = 9506842272.

The previous prime is 10101020161. The next prime is 10101020207. The reversal of 10101020203 is 30202010101.

It is a de Polignac number, because none of the positive numbers 2^k-10101020203 is a prime.

It is a super-2 number, since 2×10101020203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10101020203.

It is not an unprimeable number, because it can be changed into a prime (10101020207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17475525 + ... + 17476102.

Almost surely, 2^10101020203 is an apocalyptic number.

10101020203 is a deficient number, since it is larger than the sum of its proper divisors (629129593).

10101020203 is an equidigital number, since it uses as much as digits as its factorization.

10101020203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34951661 (or 34951644 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 10101020203 its reverse (30202010101), we get a palindrome (40303030304).

The spelling of 10101020203 in words is "ten billion, one hundred one million, twenty thousand, two hundred three".