234123142 has 12 divisors (see below), whose sum is σ = 386013348. Its totient is φ = 106419500.

The previous prime is 234123137. The next prime is 234123143. The reversal of 234123142 is 241321432.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234123143) 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 5 ways as a sum of consecutive naturals, for example, 483484 + ... + 483967.

It is an arithmetic number, because the mean of its divisors is an integer number (32167779).

Almost surely, 2^234123142 is an apocalyptic number.

234123142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

234123142 is a deficient number, since it is larger than the sum of its proper divisors (151890206).

234123142 is a wasteful number, since it uses less digits than its factorization.

234123142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967475 (or 967464 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 234123142 is about 15301.0830335633. The cubic root of 234123142 is about 616.3320913425.

Adding to 234123142 its reverse (241321432), we get a palindrome (475444574).

The spelling of 234123142 in words is "two hundred thirty-four million, one hundred twenty-three thousand, one hundred forty-two".