10001121203 has 4 divisors (see below), whose sum is σ = 10323738048. Its totient is φ = 9678504360.

The previous prime is 10001121197. The next prime is 10001121223. The reversal of 10001121203 is 30212110001.

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

It is a cyclic number.

It is not a de Polignac number, because 10001121203 - 2²⁴ = 9984343987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10001121223) 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, 161308376 + ... + 161308437.

It is an arithmetic number, because the mean of its divisors is an integer number (2580934512).

Almost surely, 2^10001121203 is an apocalyptic number.

10001121203 is a deficient number, since it is larger than the sum of its proper divisors (322616845).

10001121203 is an equidigital number, since it uses as much as digits as its factorization.

10001121203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322616844.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 10001121203 its reverse (30212110001), we get a palindrome (40213231204).

The spelling of 10001121203 in words is "ten billion, one million, one hundred twenty-one thousand, two hundred three".