234221031 has 24 divisors (see below), whose sum is σ = 381412080. Its totient is φ = 141950160.

The previous prime is 234221021. The next prime is 234221041. The reversal of 234221031 is 130122432.

It is an interprime number because it is at equal distance from previous prime (234221021) and next prime (234221041).

It is not a de Polignac number, because 234221031 - 2²⁶ = 167112167 is a prime.

It is a super-2 number, since 2×234221031² = 109718982725405922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 234220995 and 234221013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234221021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32580 + ... + 39113.

It is an arithmetic number, because the mean of its divisors is an integer number (15892170).

Almost surely, 2^234221031 is an apocalyptic number.

234221031 is a deficient number, since it is larger than the sum of its proper divisors (147191049).

234221031 is a wasteful number, since it uses less digits than its factorization.

234221031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71724 (or 71707 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 234221031 is about 15304.2814597746. The cubic root of 234221031 is about 616.4179773781.

Adding to 234221031 its reverse (130122432), we get a palindrome (364343463).

The spelling of 234221031 in words is "two hundred thirty-four million, two hundred twenty-one thousand, thirty-one".