131211443322 has 60 divisors (see below), whose sum is σ = 310299653466. Its totient is φ = 41435174160.

The previous prime is 131211443309. The next prime is 131211443323. The reversal of 131211443322 is 223344112131.

131211443322 is a `hidden beast` number, since 1 + 3 + 1 + 211 + 443 + 3 + 2 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 119196872001 + 12014571321 = 345249^2 + 109611^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (131211443323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1063329 + ... + 1180292.

Almost surely, 2^131211443322 is an apocalyptic number.

131211443322 is an abundant number, since it is smaller than the sum of its proper divisors (179088210144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131211443322 is a wasteful number, since it uses less digits than its factorization.

131211443322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243673 (or 2243645 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 131211443322 its reverse (223344112131), we get a palindrome (354555555453).

The spelling of 131211443322 in words is "one hundred thirty-one billion, two hundred eleven million, four hundred forty-three thousand, three hundred twenty-two".