141001635421 has 2 divisors, whose sum is σ = 141001635422. Its totient is φ = 141001635420.

The previous prime is 141001635419. The next prime is 141001635427. The reversal of 141001635421 is 124536100141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97335264196 + 43666371225 = 311986^2 + 208965^2 .

It is a cyclic number.

It is not a de Polignac number, because 141001635421 - 2¹ = 141001635419 is a prime.

It is a super-2 number, since 2×141001635421² (a number of 23 digits) contains 22 as substring.

Together with 141001635419, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 141001635421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141001635427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70500817710 + 70500817711.

It is an arithmetic number, because the mean of its divisors is an integer number (70500817711).

Almost surely, 2^141001635421 is an apocalyptic number.

It is an amenable number.

141001635421 is a deficient number, since it is larger than the sum of its proper divisors (1).

141001635421 is an equidigital number, since it uses as much as digits as its factorization.

141001635421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 141001635421 its reverse (124536100141), we get a palindrome (265537735562).

The spelling of 141001635421 in words is "one hundred forty-one billion, one million, six hundred thirty-five thousand, four hundred twenty-one".