13073031 has 6 divisors (see below), whose sum is σ = 18883280. Its totient is φ = 8715348.

The previous prime is 13073023. The next prime is 13073057. The reversal of 13073031 is 13037031.

It is not a de Polignac number, because 13073031 - 2³ = 13073023 is a prime.

It is a super-2 number, since 2×13073031² = 341808279053922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13072995 and 13073013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13073831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 726271 + ... + 726288.

Almost surely, 2^13073031 is an apocalyptic number.

13073031 is a deficient number, since it is larger than the sum of its proper divisors (5810249).

13073031 is a wasteful number, since it uses less digits than its factorization.

13073031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452565 (or 1452562 counting only the distinct ones).

The product of its (nonzero) digits is 189, while the sum is 18.

The square root of 13073031 is about 3615.6646691860. The cubic root of 13073031 is about 235.5729553406.

The spelling of 13073031 in words is "thirteen million, seventy-three thousand, thirty-one".