103310515421 has 2 divisors, whose sum is σ = 103310515422. Its totient is φ = 103310515420.

The previous prime is 103310515417. The next prime is 103310515423. The reversal of 103310515421 is 124515013301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60509112196 + 42801403225 = 245986^2 + 206885^2 .

It is a cyclic number.

It is not a de Polignac number, because 103310515421 - 2² = 103310515417 is a prime.

Together with 103310515423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103310515423) 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, 51655257710 + 51655257711.

It is an arithmetic number, because the mean of its divisors is an integer number (51655257711).

Almost surely, 2^103310515421 is an apocalyptic number.

It is an amenable number.

103310515421 is a deficient number, since it is larger than the sum of its proper divisors (1).

103310515421 is an equidigital number, since it uses as much as digits as its factorization.

103310515421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 103310515421 its reverse (124515013301), we get a palindrome (227825528722).

The spelling of 103310515421 in words is "one hundred three billion, three hundred ten million, five hundred fifteen thousand, four hundred twenty-one".