211130310403 has 4 divisors (see below), whose sum is σ = 212792753920. Its totient is φ = 209467866888.

The previous prime is 211130310389. The next prime is 211130310427. The reversal of 211130310403 is 304013031112.

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 211130310403 - 2³⁷ = 73691356931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211130310473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831221568 + ... + 831221821.

It is an arithmetic number, because the mean of its divisors is an integer number (53198188480).

Almost surely, 2^211130310403 is an apocalyptic number.

211130310403 is a deficient number, since it is larger than the sum of its proper divisors (1662443517).

211130310403 is a wasteful number, since it uses less digits than its factorization.

211130310403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662443516.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 211130310403 its reverse (304013031112), we get a palindrome (515143341515).

The spelling of 211130310403 in words is "two hundred eleven billion, one hundred thirty million, three hundred ten thousand, four hundred three".