131022332 has 48 divisors (see below), whose sum is σ = 278550720. Its totient is φ = 52641792.

The previous prime is 131022313. The next prime is 131022341. The reversal of 131022332 is 233220131.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 131022332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194348 + ... + 195020.

It is an arithmetic number, because the mean of its divisors is an integer number (5803140).

Almost surely, 2^131022332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131022332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139275360).

131022332 is an abundant number, since it is smaller than the sum of its proper divisors (147528388).

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

131022332 is a wasteful number, since it uses less digits than its factorization.

131022332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110 (or 1108 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 131022332 is about 11446.4986786353. The cubic root of 131022332 is about 507.9041658971.

Adding to 131022332 its reverse (233220131), we get a palindrome (364242463).

The spelling of 131022332 in words is "one hundred thirty-one million, twenty-two thousand, three hundred thirty-two".