123142030012 has 12 divisors (see below), whose sum is σ = 215502348096. Its totient is φ = 61569930560.

The previous prime is 123142030003. The next prime is 123142030043. The reversal of 123142030012 is 210030241321.

It is a happy number.

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, 18837 + ... + 496627.

It is an arithmetic number, because the mean of its divisors is an integer number (17958529008).

Almost surely, 2^123142030012 is an apocalyptic number.

It is an amenable number.

123142030012 is a deficient number, since it is larger than the sum of its proper divisors (92360318084).

123142030012 is a wasteful number, since it uses less digits than its factorization.

123142030012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542228 (or 542226 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 123142030012 its reverse (210030241321), we get a palindrome (333172271333).

The spelling of 123142030012 in words is "one hundred twenty-three billion, one hundred forty-two million, thirty thousand, twelve".