123133001012 has 36 divisors (see below), whose sum is σ = 251034136164. Its totient is φ = 52693280640.

The previous prime is 123133001011. The next prime is 123133001071. The reversal of 123133001012 is 210100331321.

It can be written as a sum of positive squares in 2 ways, for example, as 79390951696 + 43742049316 = 281764^2 + 209146^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123133001011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 331289 + ... + 596672.

It is an arithmetic number, because the mean of its divisors is an integer number (6973170449).

Almost surely, 2^123133001012 is an apocalyptic number.

It is an amenable number.

123133001012 is an abundant number, since it is smaller than the sum of its proper divisors (127901135152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123133001012 is a wasteful number, since it uses less digits than its factorization.

123133001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928656 (or 928647 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 123133001012 its reverse (210100331321), we get a palindrome (333233332333).

The spelling of 123133001012 in words is "one hundred twenty-three billion, one hundred thirty-three million, one thousand, twelve".