338361129991 has 4 divisors (see below), whose sum is σ = 349276005184. Its totient is φ = 327446254800.

The previous prime is 338361129947. The next prime is 338361130001. The reversal of 338361129991 is 199921163833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 199921163833 = 122323 ⋅1634371.

It is a cyclic number.

It is not a de Polignac number, because 338361129991 - 2⁷ = 338361129863 is a prime.

It is a super-2 number, since 2×338361129991² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338361129391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5457437550 + ... + 5457437611.

It is an arithmetic number, because the mean of its divisors is an integer number (87319001296).

Almost surely, 2^338361129991 is an apocalyptic number.

338361129991 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

338361129991 is a deficient number, since it is larger than the sum of its proper divisors (10914875193).

338361129991 is a wasteful number, since it uses less digits than its factorization.

338361129991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10914875192.

The product of its digits is 1889568, while the sum is 55.

The spelling of 338361129991 in words is "three hundred thirty-eight billion, three hundred sixty-one million, one hundred twenty-nine thousand, nine hundred ninety-one".