13898123219 has 2 divisors, whose sum is σ = 13898123220. Its totient is φ = 13898123218.

The previous prime is 13898123119. The next prime is 13898123231. The reversal of 13898123219 is 91232189831.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (91232189831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13898123219 - 2⁸ = 13898122963 is a prime.

It is a super-2 number, since 2×13898123219² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13898123279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6949061609 + 6949061610.

It is an arithmetic number, because the mean of its divisors is an integer number (6949061610).

Almost surely, 2^13898123219 is an apocalyptic number.

13898123219 is a deficient number, since it is larger than the sum of its proper divisors (1).

13898123219 is an equidigital number, since it uses as much as digits as its factorization.

13898123219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 47.

The spelling of 13898123219 in words is "thirteen billion, eight hundred ninety-eight million, one hundred twenty-three thousand, two hundred nineteen".