211103322131 has 16 divisors (see below), whose sum is σ = 231224202720. Its totient is φ = 191537863680.

The previous prime is 211103322121. The next prime is 211103322137. The reversal of 211103322131 is 131223301112.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211103322131 is a prime.

It is a super-2 number, since 2×211103322131² (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 (211103322137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9684761 + ... + 9706533.

It is an arithmetic number, because the mean of its divisors is an integer number (14451512670).

Almost surely, 2^211103322131 is an apocalyptic number.

211103322131 is a deficient number, since it is larger than the sum of its proper divisors (20120880589).

211103322131 is a wasteful number, since it uses less digits than its factorization.

211103322131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34486.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 211103322131 its reverse (131223301112), we get a palindrome (342326623243).

The spelling of 211103322131 in words is "two hundred eleven billion, one hundred three million, three hundred twenty-two thousand, one hundred thirty-one".