13213031 has 8 divisors (see below), whose sum is σ = 14299824. Its totient is φ = 12136320.

The previous prime is 13213001. The next prime is 13213043. The reversal of 13213031 is 13031231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13213031 - 2⁶ = 13212967 is a prime.

It is a super-2 number, since 2×13213031² = 349168376413922, 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 = 13212997 and 13213015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13213001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335 + ... + 5151.

It is an arithmetic number, because the mean of its divisors is an integer number (1787478).

Almost surely, 2^13213031 is an apocalyptic number.

13213031 is a deficient number, since it is larger than the sum of its proper divisors (1086793).

13213031 is a wasteful number, since it uses less digits than its factorization.

13213031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5041.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 13213031 is about 3634.9733148952. The cubic root of 13213031 is about 236.4108936396.

Adding to 13213031 its reverse (13031231), we get a palindrome (26244262).

The spelling of 13213031 in words is "thirteen million, two hundred thirteen thousand, thirty-one".