47317023109 has 2 divisors, whose sum is σ = 47317023110. Its totient is φ = 47317023108.

The previous prime is 47317023071. The next prime is 47317023121. The reversal of 47317023109 is 90132071374.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43421390884 + 3895632225 = 208378^2 + 62415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47317023109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47317023199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23658511554 + 23658511555.

It is an arithmetic number, because the mean of its divisors is an integer number (23658511555).

Almost surely, 2^47317023109 is an apocalyptic number.

It is an amenable number.

47317023109 is a deficient number, since it is larger than the sum of its proper divisors (1).

47317023109 is an equidigital number, since it uses as much as digits as its factorization.

47317023109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 37.

The spelling of 47317023109 in words is "forty-seven billion, three hundred seventeen million, twenty-three thousand, one hundred nine".