2103120001 has 4 divisors (see below), whose sum is σ = 2103217600. Its totient is φ = 2103022404.

The previous prime is 2103119987. The next prime is 2103120059. The reversal of 2103120001 is 1000213012.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2103120001 - 2²⁹ = 1566249089 is a prime.

It is a super-2 number, since 2×2103120001² = 8846227477212480002, which 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 2103120001.

It is not an unprimeable number, because it can be changed into a prime (2103120091) 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, 621 + ... + 64858.

It is an arithmetic number, because the mean of its divisors is an integer number (525804400).

Almost surely, 2^2103120001 is an apocalyptic number.

It is an amenable number.

2103120001 is a deficient number, since it is larger than the sum of its proper divisors (97599).

2103120001 is an equidigital number, since it uses as much as digits as its factorization.

2103120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97598.

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

The square root of 2103120001 is about 45859.7863165541. The cubic root of 2103120001 is about 1281.2130429602.

Adding to 2103120001 its reverse (1000213012), we get a palindrome (3103333013).

The spelling of 2103120001 in words is "two billion, one hundred three million, one hundred twenty thousand, one".