213957011917039 has 2 divisors, whose sum is σ = 213957011917040. Its totient is φ = 213957011917038.

The previous prime is 213957011916911. The next prime is 213957011917049. The reversal of 213957011917039 is 930719110759312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213957011917039 - 2⁷ = 213957011916911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213957011917049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106978505958519 + 106978505958520.

It is an arithmetic number, because the mean of its divisors is an integer number (106978505958520).

Almost surely, 2^{213957011917039} is an apocalyptic number.

213957011917039 is a deficient number, since it is larger than the sum of its proper divisors (1).

213957011917039 is an equidigital number, since it uses as much as digits as its factorization.

213957011917039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3214890, while the sum is 58.

The spelling of 213957011917039 in words is "two hundred thirteen trillion, nine hundred fifty-seven billion, eleven million, nine hundred seventeen thousand, thirty-nine".