13438275031 has 4 divisors (see below), whose sum is σ = 13474302952. Its totient is φ = 13402247112.

The previous prime is 13438275017. The next prime is 13438275041. The reversal of 13438275031 is 13057283431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13057283431 = 2221 ⋅5879011.

It is a cyclic number.

It is not a de Polignac number, because 13438275031 - 2¹⁷ = 13438143959 is a prime.

It is a super-2 number, since 2×13438275031² (a number of 21 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 (13438275041) 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, 18013401 + ... + 18014146.

It is an arithmetic number, because the mean of its divisors is an integer number (3368575738).

Almost surely, 2^13438275031 is an apocalyptic number.

13438275031 is a deficient number, since it is larger than the sum of its proper divisors (36027921).

13438275031 is an equidigital number, since it uses as much as digits as its factorization.

13438275031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36027920.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 13438275031 in words is "thirteen billion, four hundred thirty-eight million, two hundred seventy-five thousand, thirty-one".