234521031 has 8 divisors (see below), whose sum is σ = 313521280. Its totient is φ = 155934072.

The previous prime is 234521029. The next prime is 234521039. The reversal of 234521031 is 130125432.

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

It is not a de Polignac number, because 234521031 - 2¹ = 234521029 is a prime.

It is a super-2 number, since 2×234521031² = 110000227962605922, 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 = 234520989 and 234521007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234521039) 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, 101995 + ... + 104268.

It is an arithmetic number, because the mean of its divisors is an integer number (39190160).

Almost surely, 2^234521031 is an apocalyptic number.

234521031 is a deficient number, since it is larger than the sum of its proper divisors (79000249).

234521031 is a wasteful number, since it uses less digits than its factorization.

234521031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206645.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 234521031 is about 15314.0795022097. The cubic root of 234521031 is about 616.6810429892.

Adding to 234521031 its reverse (130125432), we get a palindrome (364646463).

The spelling of 234521031 in words is "two hundred thirty-four million, five hundred twenty-one thousand, thirty-one".