13880031 has 12 divisors (see below), whose sum is σ = 20342616. Its totient is φ = 8411920.

The previous prime is 13880023. The next prime is 13880039. The reversal of 13880031 is 13008831.

13880031 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13880023) and next prime (13880039).

It is not a de Polignac number, because 13880031 - 2³ = 13880023 is a prime.

It is a super-2 number, since 2×13880031² = 385310521121922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13879983 and 13880010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13880039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18756 + ... + 19481.

It is an arithmetic number, because the mean of its divisors is an integer number (1695218).

Almost surely, 2^13880031 is an apocalyptic number.

13880031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13880031 is a deficient number, since it is larger than the sum of its proper divisors (6462585).

13880031 is a wasteful number, since it uses less digits than its factorization.

13880031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38262 (or 38251 counting only the distinct ones).

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

The square root of 13880031 is about 3725.5913624551. The cubic root of 13880031 is about 240.3238163714.

Adding to 13880031 its reverse (13008831), we get a palindrome (26888862).

It can be divided in two parts, 138800 and 31, that added together give a palindrome (138831).

The spelling of 13880031 in words is "thirteen million, eight hundred eighty thousand, thirty-one".