130821102889 has 2 divisors, whose sum is σ = 130821102890. Its totient is φ = 130821102888.

The previous prime is 130821102859. The next prime is 130821102899. The reversal of 130821102889 is 988201128031.

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., 130821102864 + 25 = 361692^2 + 5^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130821102889 is a prime.

It is a super-2 number, since 2×130821102889² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (130821102859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65410551444 + 65410551445.

It is an arithmetic number, because the mean of its divisors is an integer number (65410551445).

Almost surely, 2^130821102889 is an apocalyptic number.

It is an amenable number.

130821102889 is a deficient number, since it is larger than the sum of its proper divisors (1).

130821102889 is an equidigital number, since it uses as much as digits as its factorization.

130821102889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 43.

The spelling of 130821102889 in words is "one hundred thirty billion, eight hundred twenty-one million, one hundred two thousand, eight hundred eighty-nine".