1232121142 has 8 divisors (see below), whose sum is σ = 2112207696. Its totient is φ = 528051912.

The previous prime is 1232121113. The next prime is 1232121167. The reversal of 1232121142 is 2411212321.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44004313 + ... + 44004340.

It is an arithmetic number, because the mean of its divisors is an integer number (264025962).

Almost surely, 2^1232121142 is an apocalyptic number.

1232121142 is a deficient number, since it is larger than the sum of its proper divisors (880086554).

1232121142 is an equidigital number, since it uses as much as digits as its factorization.

1232121142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88008662.

The product of its digits is 192, while the sum is 19.

The square root of 1232121142 is about 35101.5831836685. The cubic root of 1232121142 is about 1072.0568181764.

Adding to 1232121142 its reverse (2411212321), we get a palindrome (3643333463).

The spelling of 1232121142 in words is "one billion, two hundred thirty-two million, one hundred twenty-one thousand, one hundred forty-two".