381203310111313 has 4 divisors (see below), whose sum is σ = 381515005378368. Its totient is φ = 380891614844260.

The previous prime is 381203310111301. The next prime is 381203310111317. The reversal of 381203310111313 is 313111013302183.

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 a de Polignac number, because none of the positive numbers 2^k-381203310111313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381203310111317) 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, 155847631693 + ... + 155847634138.

It is an arithmetic number, because the mean of its divisors is an integer number (95378751344592).

Almost surely, 2^{381203310111313} is an apocalyptic number.

It is an amenable number.

381203310111313 is a deficient number, since it is larger than the sum of its proper divisors (311695267055).

381203310111313 is a wasteful number, since it uses less digits than its factorization.

381203310111313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311695267054.

The product of its (nonzero) digits is 3888, while the sum is 31.

Adding to 381203310111313 its reverse (313111013302183), we get a palindrome (694314323413496).

The spelling of 381203310111313 in words is "three hundred eighty-one trillion, two hundred three billion, three hundred ten million, one hundred eleven thousand, three hundred thirteen".