211133031131 has 8 divisors (see below), whose sum is σ = 230876654400. Its totient is φ = 191481026440.

The previous prime is 211133031079. The next prime is 211133031133. The reversal of 211133031131 is 131130331112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-211133031131 is a prime.

It is a super-2 number, since 2×211133031131² (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 (211133031133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22899821 + ... + 22909038.

It is an arithmetic number, because the mean of its divisors is an integer number (28859581800).

Almost surely, 2^211133031131 is an apocalyptic number.

211133031131 is a deficient number, since it is larger than the sum of its proper divisors (19743623269).

211133031131 is a wasteful number, since it uses less digits than its factorization.

211133031131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45809289.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 211133031131 its reverse (131130331112), we get a palindrome (342263362243).

The spelling of 211133031131 in words is "two hundred eleven billion, one hundred thirty-three million, thirty-one thousand, one hundred thirty-one".