13353472381 has 2 divisors, whose sum is σ = 13353472382. Its totient is φ = 13353472380.

The previous prime is 13353472369. The next prime is 13353472387. The reversal of 13353472381 is 18327435331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11425472100 + 1928000281 = 106890^2 + 43909^2 .

It is an emirp because it is prime and its reverse (18327435331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13353472381 - 2⁹ = 13353471869 is a prime.

It is a super-2 number, since 2×13353472381² (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 (13353472387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6676736190 + 6676736191.

It is an arithmetic number, because the mean of its divisors is an integer number (6676736191).

Almost surely, 2^13353472381 is an apocalyptic number.

It is an amenable number.

13353472381 is a deficient number, since it is larger than the sum of its proper divisors (1).

13353472381 is an equidigital number, since it uses as much as digits as its factorization.

13353472381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 40.

The spelling of 13353472381 in words is "thirteen billion, three hundred fifty-three million, four hundred seventy-two thousand, three hundred eighty-one".