131042322 has 12 divisors (see below), whose sum is σ = 283925070. Its totient is φ = 43680768.

The previous prime is 131042299. The next prime is 131042347. The reversal of 131042322 is 223240131.

It can be written as a sum of positive squares in only one way, i.e., 122345721 + 8696601 = 11061^2 + 2949^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 7280129 = 131042322 / (1 + 3 + 1 + 0 + 4 + 2 + 3 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 131042295 and 131042304.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3640047 + ... + 3640082.

Almost surely, 2^131042322 is an apocalyptic number.

131042322 is an abundant number, since it is smaller than the sum of its proper divisors (152882748).

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

131042322 is a wasteful number, since it uses less digits than its factorization.

131042322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7280137 (or 7280134 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 131042322 is about 11447.3718381120. The cubic root of 131042322 is about 507.9299947967.

Adding to 131042322 its reverse (223240131), we get a palindrome (354282453).

The spelling of 131042322 in words is "one hundred thirty-one million, forty-two thousand, three hundred twenty-two".