131023222 has 16 divisors (see below), whose sum is σ = 214718400. Its totient is φ = 59468040.

The previous prime is 131023163. The next prime is 131023223. The reversal of 131023222 is 222320131.

It is a super-2 number, since 2×131023222² = 34334169406522568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131023196 and 131023205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131023223) 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, 12229 + ... + 20287.

It is an arithmetic number, because the mean of its divisors is an integer number (13419900).

Almost surely, 2^131023222 is an apocalyptic number.

131023222 is a deficient number, since it is larger than the sum of its proper divisors (83695178).

131023222 is a wasteful number, since it uses less digits than its factorization.

131023222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8811.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 131023222 is about 11446.5375550863. The cubic root of 131023222 is about 507.9053159140.

Adding to 131023222 its reverse (222320131), we get a palindrome (353343353).

The spelling of 131023222 in words is "one hundred thirty-one million, twenty-three thousand, two hundred twenty-two".