234220311 has 18 divisors (see below), whose sum is σ = 366346968. Its totient is φ = 144134640.

The previous prime is 234220307. The next prime is 234220319. The reversal of 234220311 is 113022432.

It is not a de Polignac number, because 234220311 - 2² = 234220307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234220319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 75475 + ... + 78516.

Almost surely, 2^234220311 is an apocalyptic number.

234220311 is a deficient number, since it is larger than the sum of its proper divisors (132126657).

234220311 is a wasteful number, since it uses less digits than its factorization.

234220311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154023 (or 154007 counting only the distinct ones).

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

The square root of 234220311 is about 15304.2579369272. The cubic root of 234220311 is about 616.4173457505.

Adding to 234220311 its reverse (113022432), we get a palindrome (347242743).

The spelling of 234220311 in words is "two hundred thirty-four million, two hundred twenty thousand, three hundred eleven".