13800000831 has 4 divisors (see below), whose sum is σ = 18400001112. Its totient is φ = 9200000552.

The previous prime is 13800000829. The next prime is 13800000857.

13800000831 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13800000831 - 2¹ = 13800000829 is a prime.

It is a super-2 number, since 2×13800000831² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13800000031) 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, 2300000136 + ... + 2300000141.

It is an arithmetic number, because the mean of its divisors is an integer number (4600000278).

Almost surely, 2^13800000831 is an apocalyptic number.

13800000831 is a deficient number, since it is larger than the sum of its proper divisors (4600000281).

13800000831 is an equidigital number, since it uses as much as digits as its factorization.

13800000831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4600000280.

The product of its (nonzero) digits is 576, while the sum is 24.

It can be divided in two parts, 13800000 and 831, that added together give a palindrome (13800831).

The spelling of 13800000831 in words is "thirteen billion, eight hundred million, eight hundred thirty-one", and thus it is an aban number.