131000344303421 has 16 divisors (see below), whose sum is σ = 136881003447936. Its totient is φ = 125135120506176.

The previous prime is 131000344303397. The next prime is 131000344303427. The reversal of 131000344303421 is 124303443000131.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-131000344303421 is a prime.

It is a super-2 number, since 2×131000344303421² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131000344303427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310619531 + ... + 311040983.

It is an arithmetic number, because the mean of its divisors is an integer number (8555062715496).

Almost surely, 2^{131000344303421} is an apocalyptic number.

It is an amenable number.

131000344303421 is a deficient number, since it is larger than the sum of its proper divisors (5880659144515).

131000344303421 is a wasteful number, since it uses less digits than its factorization.

131000344303421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439732.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 131000344303421 its reverse (124303443000131), we get a palindrome (255303787303552).

The spelling of 131000344303421 in words is "one hundred thirty-one trillion, three hundred forty-four million, three hundred three thousand, four hundred twenty-one".