130102202110721 has 2 divisors, whose sum is σ = 130102202110722. Its totient is φ = 130102202110720.

The previous prime is 130102202110709. The next prime is 130102202110729. The reversal of 130102202110721 is 127011202201031.

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., 129250068192400 + 852133918321 = 11368820^2 + 923111^2 .

It is an emirp because it is prime and its reverse (127011202201031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130102202110721 is a prime.

It is not a weakly prime, because it can be changed into another prime (130102202110729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65051101055360 + 65051101055361.

It is an arithmetic number, because the mean of its divisors is an integer number (65051101055361).

Almost surely, 2^{130102202110721} is an apocalyptic number.

It is an amenable number.

130102202110721 is a deficient number, since it is larger than the sum of its proper divisors (1).

130102202110721 is an equidigital number, since it uses as much as digits as its factorization.

130102202110721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 130102202110721 its reverse (127011202201031), we get a palindrome (257113404311752).

The spelling of 130102202110721 in words is "one hundred thirty trillion, one hundred two billion, two hundred two million, one hundred ten thousand, seven hundred twenty-one".