1233123142 has 16 divisors (see below), whose sum is σ = 1955406960. Its totient is φ = 581599872.

The previous prime is 1233123131. The next prime is 1233123149. The reversal of 1233123142 is 2413213321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233123149) 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, 60783 + ... + 78490.

It is an arithmetic number, because the mean of its divisors is an integer number (122212935).

Almost surely, 2^1233123142 is an apocalyptic number.

1233123142 is a deficient number, since it is larger than the sum of its proper divisors (722283818).

1233123142 is a wasteful number, since it uses less digits than its factorization.

1233123142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139527.

The product of its digits is 864, while the sum is 22.

The square root of 1233123142 is about 35115.8531435590. The cubic root of 1233123142 is about 1072.3473496388.

Adding to 1233123142 its reverse (2413213321), we get a palindrome (3646336463).

The spelling of 1233123142 in words is "one billion, two hundred thirty-three million, one hundred twenty-three thousand, one hundred forty-two".