131440656322 has 16 divisors (see below), whose sum is σ = 197403118200. Its totient is φ = 65639669760.

The previous prime is 131440656311. The next prime is 131440656341. The reversal of 131440656322 is 223656044131.

It can be written as a sum of positive squares in 4 ways, for example, as 76004424721 + 55436231601 = 275689^2 + 235449^2 .

It is a super-2 number, since 2×131440656322² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5693122 + ... + 5716162.

Almost surely, 2^131440656322 is an apocalyptic number.

131440656322 is a deficient number, since it is larger than the sum of its proper divisors (65962461878).

131440656322 is a wasteful number, since it uses less digits than its factorization.

131440656322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26421.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 131440656322 in words is "one hundred thirty-one billion, four hundred forty million, six hundred fifty-six thousand, three hundred twenty-two".