131000031201442 has 24 divisors (see below), whose sum is σ = 216792839428884. Its totient is φ = 59320768837824.

The previous prime is 131000031201373. The next prime is 131000031201443. The reversal of 131000031201442 is 244102130000131.

It can be written as a sum of positive squares in 6 ways, for example, as 17650173866521 + 113349857334921 = 4201211^2 + 10646589^2 .

It is a super-2 number, since 2×131000031201442² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131000031201443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3656341113 + ... + 3656376940.

Almost surely, 2^{131000031201442} is an apocalyptic number.

131000031201442 is a deficient number, since it is larger than the sum of its proper divisors (85792808227442).

131000031201442 is a wasteful number, since it uses less digits than its factorization.

131000031201442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7312718134 (or 7312718121 counting only the distinct ones).

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

Adding to 131000031201442 its reverse (244102130000131), we get a palindrome (375102161201573).

The spelling of 131000031201442 in words is "one hundred thirty-one trillion, thirty-one million, two hundred one thousand, four hundred forty-two".