211343031403 has 16 divisors (see below), whose sum is σ = 247476934656. Its totient is φ = 176696458560.

The previous prime is 211343031353. The next prime is 211343031413. The reversal of 211343031403 is 304130343112.

211343031403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 211343031403 - 2³⁷ = 73904077931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211343031413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1368300 + ... + 1514902.

It is an arithmetic number, because the mean of its divisors is an integer number (15467308416).

Almost surely, 2^211343031403 is an apocalyptic number.

211343031403 is a deficient number, since it is larger than the sum of its proper divisors (36133903253).

211343031403 is a wasteful number, since it uses less digits than its factorization.

211343031403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151674.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 211343031403 its reverse (304130343112), we get a palindrome (515473374515).

The spelling of 211343031403 in words is "two hundred eleven billion, three hundred forty-three million, thirty-one thousand, four hundred three".