131002131024442 has 4 divisors (see below), whose sum is σ = 196503196536666. Its totient is φ = 65501065512220.

The previous prime is 131002131024439. The next prime is 131002131024461. The reversal of 131002131024442 is 244420131200131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 118513900915281 + 12488230109161 = 10886409^2 + 3533869^2 .

It is a super-2 number, since 2×131002131024442² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131002131024442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32750532756109 + ... + 32750532756112.

Almost surely, 2^{131002131024442} is an apocalyptic number.

131002131024442 is a deficient number, since it is larger than the sum of its proper divisors (65501065512224).

131002131024442 is an equidigital number, since it uses as much as digits as its factorization.

131002131024442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65501065512223.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 131002131024442 its reverse (244420131200131), we get a palindrome (375422262224573).

The spelling of 131002131024442 in words is "one hundred thirty-one trillion, two billion, one hundred thirty-one million, twenty-four thousand, four hundred forty-two".