2103400311 has 4 divisors (see below), whose sum is σ = 2804533752. Its totient is φ = 1402266872.

The previous prime is 2103400307. The next prime is 2103400357. The reversal of 2103400311 is 1130043012.

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 2103400311 - 2² = 2103400307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103400391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350566716 + ... + 350566721.

It is an arithmetic number, because the mean of its divisors is an integer number (701133438).

Almost surely, 2^2103400311 is an apocalyptic number.

2103400311 is a deficient number, since it is larger than the sum of its proper divisors (701133441).

2103400311 is an equidigital number, since it uses as much as digits as its factorization.

2103400311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701133440.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2103400311 is about 45862.8423781169. The cubic root of 2103400311 is about 1281.2699617084.

Adding to 2103400311 its reverse (1130043012), we get a palindrome (3233443323).

The spelling of 2103400311 in words is "two billion, one hundred three million, four hundred thousand, three hundred eleven".