213038031 has 8 divisors (see below), whose sum is σ = 293845680. Its totient is φ = 137127872.

The previous prime is 213038011. The next prime is 213038053. The reversal of 213038031 is 130830312.

It is a happy number.

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 213038031 - 2¹⁷ = 212906959 is a prime.

It is a super-2 number, since 2×213038031² = 90770405304713922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213037989 and 213038007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213038011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1224270 + ... + 1224443.

It is an arithmetic number, because the mean of its divisors is an integer number (36730710).

Almost surely, 2^213038031 is an apocalyptic number.

213038031 is a deficient number, since it is larger than the sum of its proper divisors (80807649).

213038031 is a wasteful number, since it uses less digits than its factorization.

213038031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448745.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 213038031 is about 14595.8223817639. The cubic root of 213038031 is about 597.2448036318.

Adding to 213038031 its reverse (130830312), we get a palindrome (343868343).

The spelling of 213038031 in words is "two hundred thirteen million, thirty-eight thousand, thirty-one".