140231433333221 has 2 divisors, whose sum is σ = 140231433333222. Its totient is φ = 140231433333220.

The previous prime is 140231433333137. The next prime is 140231433333223. The reversal of 140231433333221 is 122333334132041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109736309760100 + 30495123573121 = 10475510^2 + 5522239^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140231433333221 is a prime.

Together with 140231433333223, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140231433333223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70115716666610 + 70115716666611.

It is an arithmetic number, because the mean of its divisors is an integer number (70115716666611).

Almost surely, 2^{140231433333221} is an apocalyptic number.

It is an amenable number.

140231433333221 is a deficient number, since it is larger than the sum of its proper divisors (1).

140231433333221 is an equidigital number, since it uses as much as digits as its factorization.

140231433333221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 35.

Adding to 140231433333221 its reverse (122333334132041), we get a palindrome (262564767465262).

The spelling of 140231433333221 in words is "one hundred forty trillion, two hundred thirty-one billion, four hundred thirty-three million, three hundred thirty-three thousand, two hundred twenty-one".