140310131442421 has 2 divisors, whose sum is σ = 140310131442422. Its totient is φ = 140310131442420.

The previous prime is 140310131442419. The next prime is 140310131442461. The reversal of 140310131442421 is 124244131013041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126741325623025 + 13568805819396 = 11257945^2 + 3683586^2 .

It is a cyclic number.

It is not a de Polignac number, because 140310131442421 - 2¹ = 140310131442419 is a prime.

Together with 140310131442419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140310131442461) 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 as a sum of consecutive naturals, namely, 70155065721210 + 70155065721211.

It is an arithmetic number, because the mean of its divisors is an integer number (70155065721211).

Almost surely, 2^{140310131442421} is an apocalyptic number.

It is an amenable number.

140310131442421 is a deficient number, since it is larger than the sum of its proper divisors (1).

140310131442421 is an equidigital number, since it uses as much as digits as its factorization.

140310131442421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 140310131442421 its reverse (124244131013041), we get a palindrome (264554262455462).

The spelling of 140310131442421 in words is "one hundred forty trillion, three hundred ten billion, one hundred thirty-one million, four hundred forty-two thousand, four hundred twenty-one".