13050355421 has 2 divisors, whose sum is σ = 13050355422. Its totient is φ = 13050355420.

The previous prime is 13050355399. The next prime is 13050355429. The reversal of 13050355421 is 12455305031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12636232921 + 414122500 = 112411^2 + 20350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13050355421 is a prime.

It is a super-2 number, since 2×13050355421² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13050355429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6525177710 + 6525177711.

It is an arithmetic number, because the mean of its divisors is an integer number (6525177711).

Almost surely, 2^13050355421 is an apocalyptic number.

It is an amenable number.

13050355421 is a deficient number, since it is larger than the sum of its proper divisors (1).

13050355421 is an equidigital number, since it uses as much as digits as its factorization.

13050355421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 13050355421 in words is "thirteen billion, fifty million, three hundred fifty-five thousand, four hundred twenty-one".