123142001012 has 24 divisors (see below), whose sum is σ = 236703163200. Its totient is φ = 55794315456.

The previous prime is 123142001011. The next prime is 123142001029. The reversal of 123142001012 is 210100241321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123142001011) 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, 35221937 + ... + 35225432.

It is an arithmetic number, because the mean of its divisors is an integer number (9862631800).

Almost surely, 2^123142001012 is an apocalyptic number.

It is an amenable number.

123142001012 is a deficient number, since it is larger than the sum of its proper divisors (113561162188).

123142001012 is a wasteful number, since it uses less digits than its factorization.

123142001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70447415 (or 70447413 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 123142001012 its reverse (210100241321), we get a palindrome (333242242333).

The spelling of 123142001012 in words is "one hundred twenty-three billion, one hundred forty-two million, one thousand, twelve".