123212032001 has 4 divisors (see below), whose sum is σ = 123419810052. Its totient is φ = 123004253952.

The previous prime is 123212031967. The next prime is 123212032037. The reversal of 123212032001 is 100230212321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 73449130225 + 49762901776 = 271015^2 + 223076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123212032001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123212032061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103888136 + ... + 103889321.

It is an arithmetic number, because the mean of its divisors is an integer number (30854952513).

Almost surely, 2^123212032001 is an apocalyptic number.

It is an amenable number.

123212032001 is a deficient number, since it is larger than the sum of its proper divisors (207778051).

123212032001 is an equidigital number, since it uses as much as digits as its factorization.

123212032001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207778050.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 123212032001 its reverse (100230212321), we get a palindrome (223442244322).

The spelling of 123212032001 in words is "one hundred twenty-three billion, two hundred twelve million, thirty-two thousand, one".