43121413301 has 2 divisors, whose sum is σ = 43121413302. Its totient is φ = 43121413300.

The previous prime is 43121413297. The next prime is 43121413327. The reversal of 43121413301 is 10331412134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42446712676 + 674700625 = 206026^2 + 25975^2 .

It is a cyclic number.

It is not a de Polignac number, because 43121413301 - 2² = 43121413297 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43121413351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21560706650 + 21560706651.

It is an arithmetic number, because the mean of its divisors is an integer number (21560706651).

Almost surely, 2^43121413301 is an apocalyptic number.

It is an amenable number.

43121413301 is a deficient number, since it is larger than the sum of its proper divisors (1).

43121413301 is an equidigital number, since it uses as much as digits as its factorization.

43121413301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 43121413301 its reverse (10331412134), we get a palindrome (53452825435).

The spelling of 43121413301 in words is "forty-three billion, one hundred twenty-one million, four hundred thirteen thousand, three hundred one".