211431413402 has 64 divisors (see below), whose sum is σ = 360395481600. Its totient is φ = 92184281280.

The previous prime is 211431413357. The next prime is 211431413411. The reversal of 211431413402 is 204314134112.

211431413402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 104203724 + ... + 104205752.

It is an arithmetic number, because the mean of its divisors is an integer number (5631179400).

Almost surely, 2^211431413402 is an apocalyptic number.

211431413402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211431413402 is a deficient number, since it is larger than the sum of its proper divisors (148964068198).

211431413402 is a wasteful number, since it uses less digits than its factorization.

211431413402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4011.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 211431413402 its reverse (204314134112), we get a palindrome (415745547514).

The spelling of 211431413402 in words is "two hundred eleven billion, four hundred thirty-one million, four hundred thirteen thousand, four hundred two".