121300043 has 2 divisors, whose sum is σ = 121300044. Its totient is φ = 121300042.

The previous prime is 121300037. The next prime is 121300051. The reversal of 121300043 is 340003121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121300043 - 2⁴ = 121300027 is a prime.

It is not a weakly prime, because it can be changed into another prime (121300073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60650021 + 60650022.

It is an arithmetic number, because the mean of its divisors is an integer number (60650022).

Almost surely, 2^121300043 is an apocalyptic number.

121300043 is a deficient number, since it is larger than the sum of its proper divisors (1).

121300043 is an equidigital number, since it uses as much as digits as its factorization.

121300043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 121300043 is about 11013.6298739335. The cubic root of 121300043 is about 495.0172330157.

Adding to 121300043 its reverse (340003121), we get a palindrome (461303164).

The spelling of 121300043 in words is "one hundred twenty-one million, three hundred thousand, forty-three".