201043321939 has 2 divisors, whose sum is σ = 201043321940. Its totient is φ = 201043321938.

The previous prime is 201043321933. The next prime is 201043321951. The reversal of 201043321939 is 939123340102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201043321939 - 2⁵ = 201043321907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201043321898 and 201043321907.

It is not a weakly prime, because it can be changed into another prime (201043321933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100521660969 + 100521660970.

It is an arithmetic number, because the mean of its divisors is an integer number (100521660970).

Almost surely, 2^201043321939 is an apocalyptic number.

201043321939 is a deficient number, since it is larger than the sum of its proper divisors (1).

201043321939 is an equidigital number, since it uses as much as digits as its factorization.

201043321939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 201043321939 in words is "two hundred one billion, forty-three million, three hundred twenty-one thousand, nine hundred thirty-nine".