141242122421 has 8 divisors (see below), whose sum is σ = 142507218360. Its totient is φ = 139981652928.

The previous prime is 141242122409. The next prime is 141242122433. The reversal of 141242122421 is 124221242141.

It is an interprime number because it is at equal distance from previous prime (141242122409) and next prime (141242122433).

It can be written as a sum of positive squares in 4 ways, for example, as 6396000625 + 134846121796 = 79975^2 + 367214^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-141242122421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141242122321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1095266 + ... + 1217411.

It is an arithmetic number, because the mean of its divisors is an integer number (17813402295).

Almost surely, 2^141242122421 is an apocalyptic number.

It is an amenable number.

141242122421 is a deficient number, since it is larger than the sum of its proper divisors (1265095939).

141242122421 is a wasteful number, since it uses less digits than its factorization.

141242122421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2313223.

The product of its digits is 2048, while the sum is 26.

Adding to 141242122421 its reverse (124221242141), we get a palindrome (265463364562).

The spelling of 141242122421 in words is "one hundred forty-one billion, two hundred forty-two million, one hundred twenty-two thousand, four hundred twenty-one".