2100300003 has 32 divisors (see below), whose sum is σ = 3400888320. Its totient is φ = 1275315840.

The previous prime is 2100300001. The next prime is 2100300011. The reversal of 2100300003 is 3000030012.

It is a happy number.

It is not a de Polignac number, because 2100300003 - 2¹ = 2100300001 is a prime.

It is a super-2 number, since 2×2100300003² = 8822520205203600018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (2100300001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59575 + ... + 88032.

It is an arithmetic number, because the mean of its divisors is an integer number (106277760).

Almost surely, 2^2100300003 is an apocalyptic number.

2100300003 is a deficient number, since it is larger than the sum of its proper divisors (1300588317).

2100300003 is a wasteful number, since it uses less digits than its factorization.

2100300003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147664 (or 147658 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 2100300003 is about 45829.0301337482. The cubic root of 2100300003 is about 1280.6401426539.

Adding to 2100300003 its reverse (3000030012), we get a palindrome (5100330015).

The spelling of 2100300003 in words is "two billion, one hundred million, three hundred thousand, three".