131211322 has 16 divisors (see below), whose sum is σ = 216838944. Its totient is φ = 59050000.

The previous prime is 131211319. The next prime is 131211323. The reversal of 131211322 is 223112131.

It is a super-2 number, since 2×131211322² = 34432822041975368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131211296 and 131211305.

It is not an unprimeable number, because it can be changed into a prime (131211323) 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, 27304 + ... + 31747.

It is an arithmetic number, because the mean of its divisors is an integer number (13552434).

Almost surely, 2^131211322 is an apocalyptic number.

131211322 is a deficient number, since it is larger than the sum of its proper divisors (85627622).

131211322 is a wasteful number, since it uses less digits than its factorization.

131211322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59165.

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

The square root of 131211322 is about 11454.7510666972. The cubic root of 131211322 is about 508.1482532766.

Adding to 131211322 its reverse (223112131), we get a palindrome (354323453).

The spelling of 131211322 in words is "one hundred thirty-one million, two hundred eleven thousand, three hundred twenty-two".