338103140047721 has 4 divisors (see below), whose sum is σ = 338104151567952. Its totient is φ = 338102128527492.

The previous prime is 338103140047703. The next prime is 338103140047733. The reversal of 338103140047721 is 127740041301833.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 338103140047721 - 2¹⁰ = 338103140046697 is a prime.

It is a super-2 number, since 2×338103140047721² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (338103140037721) 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, 505258571 + ... + 505927296.

It is an arithmetic number, because the mean of its divisors is an integer number (84526037891988).

Almost surely, 2^{338103140047721} is an apocalyptic number.

It is an amenable number.

338103140047721 is a deficient number, since it is larger than the sum of its proper divisors (1011520231).

338103140047721 is a wasteful number, since it uses less digits than its factorization.

338103140047721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011520230.

The product of its (nonzero) digits is 338688, while the sum is 44.

The spelling of 338103140047721 in words is "three hundred thirty-eight trillion, one hundred three billion, one hundred forty million, forty-seven thousand, seven hundred twenty-one".