211000403131 has 4 divisors (see below), whose sum is σ = 241143317872. Its totient is φ = 180857488392.

The previous prime is 211000403071. The next prime is 211000403137. The reversal of 211000403131 is 131304000112.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 211000403131 - 2³³ = 202410468539 is a prime.

It is a super-2 number, since 2×211000403131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211000403137) 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, 15071457360 + ... + 15071457373.

It is an arithmetic number, because the mean of its divisors is an integer number (60285829468).

Almost surely, 2^211000403131 is an apocalyptic number.

211000403131 is a deficient number, since it is larger than the sum of its proper divisors (30142914741).

211000403131 is an equidigital number, since it uses as much as digits as its factorization.

211000403131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30142914740.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 211000403131 its reverse (131304000112), we get a palindrome (342304403243).

The spelling of 211000403131 in words is "two hundred eleven billion, four hundred three thousand, one hundred thirty-one".