10203300121 has 4 divisors (see below), whose sum is σ = 11660914432. Its totient is φ = 8745685812.

The previous prime is 10203300113. The next prime is 10203300127. The reversal of 10203300121 is 12100330201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12100330201 = 53 ⋅228308117.

It is a cyclic number.

It is not a de Polignac number, because 10203300121 - 2³ = 10203300113 is a prime.

It is a super-2 number, since 2×10203300121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10203300127) 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, 728807145 + ... + 728807158.

It is an arithmetic number, because the mean of its divisors is an integer number (2915228608).

Almost surely, 2^10203300121 is an apocalyptic number.

It is an amenable number.

10203300121 is a deficient number, since it is larger than the sum of its proper divisors (1457614311).

10203300121 is an equidigital number, since it uses as much as digits as its factorization.

10203300121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457614310.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 10203300121 its reverse (12100330201), we get a palindrome (22303630322).

The spelling of 10203300121 in words is "ten billion, two hundred three million, three hundred thousand, one hundred twenty-one".