131028322 has 16 divisors (see below), whose sum is σ = 208818360. Its totient is φ = 61544448.

The previous prime is 131028301. The next prime is 131028329. The reversal of 131028322 is 223820131.

It can be written as a sum of positive squares in 4 ways, for example, as 130165281 + 863041 = 11409^2 + 929^2 .

It is a super-2 number, since 2×131028322² = 34336842332271368, which contains 22 as substring.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 131028293 and 131028302.

It is not an unprimeable number, because it can be changed into a prime (131028329) 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, 28383 + ... + 32674.

Almost surely, 2^131028322 is an apocalyptic number.

131028322 is a deficient number, since it is larger than the sum of its proper divisors (77790038).

131028322 is a wasteful number, since it uses less digits than its factorization.

131028322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61125.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 131028322 is about 11446.7603277084. The cubic root of 131028322 is about 507.9119057980.

Adding to 131028322 its reverse (223820131), we get a palindrome (354848453).

The spelling of 131028322 in words is "one hundred thirty-one million, twenty-eight thousand, three hundred twenty-two".