141421002421 has 2 divisors, whose sum is σ = 141421002422. Its totient is φ = 141421002420.

The previous prime is 141421002419. The next prime is 141421002461. The reversal of 141421002421 is 124200124141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124548291396 + 16872711025 = 352914^2 + 129895^2 .

It is a cyclic number.

It is not a de Polignac number, because 141421002421 - 2¹ = 141421002419 is a prime.

It is a super-2 number, since 2×141421002421² (a number of 23 digits) contains 22 as substring.

Together with 141421002419, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 141421002392 and 141421002401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141421002461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70710501210 + 70710501211.

It is an arithmetic number, because the mean of its divisors is an integer number (70710501211).

Almost surely, 2^141421002421 is an apocalyptic number.

It is an amenable number.

141421002421 is a deficient number, since it is larger than the sum of its proper divisors (1).

141421002421 is an equidigital number, since it uses as much as digits as its factorization.

141421002421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 141421002421 its reverse (124200124141), we get a palindrome (265621126562).

The spelling of 141421002421 in words is "one hundred forty-one billion, four hundred twenty-one million, two thousand, four hundred twenty-one".