102120103457 has 2 divisors, whose sum is σ = 102120103458. Its totient is φ = 102120103456.

The previous prime is 102120103411. The next prime is 102120103469. The reversal of 102120103457 is 754301021201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97369585681 + 4750517776 = 312041^2 + 68924^2 .

It is a cyclic number.

It is not a de Polignac number, because 102120103457 - 2²⁸ = 101851668001 is a prime.

It is not a weakly prime, because it can be changed into another prime (102120100457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51060051728 + 51060051729.

It is an arithmetic number, because the mean of its divisors is an integer number (51060051729).

Almost surely, 2^102120103457 is an apocalyptic number.

It is an amenable number.

102120103457 is a deficient number, since it is larger than the sum of its proper divisors (1).

102120103457 is an equidigital number, since it uses as much as digits as its factorization.

102120103457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

Adding to 102120103457 its reverse (754301021201), we get a palindrome (856421124658).

The spelling of 102120103457 in words is "one hundred two billion, one hundred twenty million, one hundred three thousand, four hundred fifty-seven".