10203133121 has 8 divisors (see below), whose sum is σ = 10265973600. Its totient is φ = 10140450048.

The previous prime is 10203133111. The next prime is 10203133159. The reversal of 10203133121 is 12133130201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10203133121 is a prime.

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 10203133121.

It is not an unprimeable number, because it can be changed into a prime (10203133111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92030 + ... + 169928.

It is an arithmetic number, because the mean of its divisors is an integer number (1283246700).

Almost surely, 2^10203133121 is an apocalyptic number.

It is an amenable number.

10203133121 is a deficient number, since it is larger than the sum of its proper divisors (62840479).

10203133121 is an equidigital number, since it uses as much as digits as its factorization.

10203133121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78703.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 10203133121 its reverse (12133130201), we get a palindrome (22336263322).

The spelling of 10203133121 in words is "ten billion, two hundred three million, one hundred thirty-three thousand, one hundred twenty-one".