43301023121 has 2 divisors, whose sum is σ = 43301023122. Its totient is φ = 43301023120.

The previous prime is 43301023111. The next prime is 43301023147. The reversal of 43301023121 is 12132010334.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41498171521 + 1802851600 = 203711^2 + 42460^2 .

It is a cyclic number.

It is not a de Polignac number, because 43301023121 - 2¹⁴ = 43301006737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43301023093 and 43301023102.

It is not a weakly prime, because it can be changed into another prime (43301023111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21650511560 + 21650511561.

It is an arithmetic number, because the mean of its divisors is an integer number (21650511561).

Almost surely, 2^43301023121 is an apocalyptic number.

It is an amenable number.

43301023121 is a deficient number, since it is larger than the sum of its proper divisors (1).

43301023121 is an equidigital number, since it uses as much as digits as its factorization.

43301023121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 43301023121 its reverse (12132010334), we get a palindrome (55433033455).

The spelling of 43301023121 in words is "forty-three billion, three hundred one million, twenty-three thousand, one hundred twenty-one".