131412334101421 has 4 divisors (see below), whose sum is σ = 131414799260700. Its totient is φ = 131409868942144.

The previous prime is 131412334101403. The next prime is 131412334101449. The reversal of 131412334101421 is 124101433214131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 39483453019396 + 91928881082025 = 6283586^2 + 9587955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131412334101421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131412334101401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1232499676 + ... + 1232606293.

It is an arithmetic number, because the mean of its divisors is an integer number (32853699815175).

Almost surely, 2^{131412334101421} is an apocalyptic number.

It is an amenable number.

131412334101421 is a deficient number, since it is larger than the sum of its proper divisors (2465159279).

131412334101421 is an equidigital number, since it uses as much as digits as its factorization.

131412334101421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465159278.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 131412334101421 its reverse (124101433214131), we get a palindrome (255513767315552).

The spelling of 131412334101421 in words is "one hundred thirty-one trillion, four hundred twelve billion, three hundred thirty-four million, one hundred one thousand, four hundred twenty-one".