10213121203 has 4 divisors (see below), whose sum is σ = 10213395408. Its totient is φ = 10212847000.

The previous prime is 10213121189. The next prime is 10213121209. The reversal of 10213121203 is 30212131201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30212131201 = 7 ⋅4316018743.

It is a cyclic number.

It is not a de Polignac number, because 10213121203 - 2³³ = 1623186611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10213121209) 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, 70423 + ... + 159328.

It is an arithmetic number, because the mean of its divisors is an integer number (2553348852).

Almost surely, 2^10213121203 is an apocalyptic number.

10213121203 is a deficient number, since it is larger than the sum of its proper divisors (274205).

10213121203 is an equidigital number, since it uses as much as digits as its factorization.

10213121203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274204.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 10213121203 its reverse (30212131201), we get a palindrome (40425252404).

The spelling of 10213121203 in words is "ten billion, two hundred thirteen million, one hundred twenty-one thousand, two hundred three".