131000321320442 has 32 divisors (see below), whose sum is σ = 224766118857600. Its totient is φ = 56094467724288.

The previous prime is 131000321320391. The next prime is 131000321320457. The reversal of 131000321320442 is 244023123000131.

It is a super-2 number, since 2×131000321320442² (a number of 29 digits) contains 22 as substring.

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, 207014573 + ... + 207646415.

It is an arithmetic number, because the mean of its divisors is an integer number (7023941214300).

Almost surely, 2^{131000321320442} is an apocalyptic number.

131000321320442 is a deficient number, since it is larger than the sum of its proper divisors (93765797537158).

131000321320442 is a wasteful number, since it uses less digits than its factorization.

131000321320442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644630.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 131000321320442 its reverse (244023123000131), we get a palindrome (375023444320573).

The spelling of 131000321320442 in words is "one hundred thirty-one trillion, three hundred twenty-one million, three hundred twenty thousand, four hundred forty-two".