20132001123 has 12 divisors (see below), whose sum is σ = 29066321880. Its totient is φ = 12388923456.

The previous prime is 20132001119. The next prime is 20132001151. The reversal of 20132001123 is 32110023102.

It is not a de Polignac number, because 20132001123 - 2² = 20132001119 is a prime.

It is a super-2 number, since 2×20132001123² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20132001193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19853538 + ... + 19854551.

It is an arithmetic number, because the mean of its divisors is an integer number (2422193490).

Almost surely, 2^20132001123 is an apocalyptic number.

20132001123 is a deficient number, since it is larger than the sum of its proper divisors (8934320757).

20132001123 is a wasteful number, since it uses less digits than its factorization.

20132001123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39708118 (or 39708105 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20132001123 its reverse (32110023102), we get a palindrome (52242024225).

The spelling of 20132001123 in words is "twenty billion, one hundred thirty-two million, one thousand, one hundred twenty-three".