140230422321421 has 2 divisors, whose sum is σ = 140230422321422. Its totient is φ = 140230422321420.

The previous prime is 140230422321383. The next prime is 140230422321463. The reversal of 140230422321421 is 124123224032041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117175645552900 + 23054776768521 = 10824770^2 + 4801539^2 .

It is a cyclic number.

It is not a de Polignac number, because 140230422321421 - 2²⁵ = 140230388766989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140230422322421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70115211160710 + 70115211160711.

It is an arithmetic number, because the mean of its divisors is an integer number (70115211160711).

Almost surely, 2^{140230422321421} is an apocalyptic number.

It is an amenable number.

140230422321421 is a deficient number, since it is larger than the sum of its proper divisors (1).

140230422321421 is an equidigital number, since it uses as much as digits as its factorization.

140230422321421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 140230422321421 its reverse (124123224032041), we get a palindrome (264353646353462).

The spelling of 140230422321421 in words is "one hundred forty trillion, two hundred thirty billion, four hundred twenty-two million, three hundred twenty-one thousand, four hundred twenty-one".