43121300980939 has 2 divisors, whose sum is σ = 43121300980940. Its totient is φ = 43121300980938.

The previous prime is 43121300980931. The next prime is 43121300980957. The reversal of 43121300980939 is 93908900312134.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43121300980939 - 2³ = 43121300980931 is a prime.

It is not a weakly prime, because it can be changed into another prime (43121300980931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21560650490469 + 21560650490470.

It is an arithmetic number, because the mean of its divisors is an integer number (21560650490470).

Almost surely, 2^{43121300980939} is an apocalyptic number.

43121300980939 is a deficient number, since it is larger than the sum of its proper divisors (1).

43121300980939 is an equidigital number, since it uses as much as digits as its factorization.

43121300980939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1259712, while the sum is 52.

The spelling of 43121300980939 in words is "forty-three trillion, one hundred twenty-one billion, three hundred million, nine hundred eighty thousand, nine hundred thirty-nine".