102317454881 has 2 divisors, whose sum is σ = 102317454882. Its totient is φ = 102317454880.

The previous prime is 102317454859. The next prime is 102317454913. The reversal of 102317454881 is 188454713201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62080705600 + 40236749281 = 249160^2 + 200591^2 .

It is a cyclic number.

It is not a de Polignac number, because 102317454881 - 2⁶ = 102317454817 is a prime.

It is a super-2 number, since 2×102317454881² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (102317453881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51158727440 + 51158727441.

It is an arithmetic number, because the mean of its divisors is an integer number (51158727441).

Almost surely, 2^102317454881 is an apocalyptic number.

It is an amenable number.

102317454881 is a deficient number, since it is larger than the sum of its proper divisors (1).

102317454881 is an equidigital number, since it uses as much as digits as its factorization.

102317454881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 102317454881 in words is "one hundred two billion, three hundred seventeen million, four hundred fifty-four thousand, eight hundred eighty-one".