123321023001 has 24 divisors (see below), whose sum is σ = 201024869760. Its totient is φ = 72162770400.

The previous prime is 123321022997. The next prime is 123321023047. The reversal of 123321023001 is 100320123321.

It is not a de Polignac number, because 123321023001 - 2² = 123321022997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123321023081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21474145 + ... + 21479886.

It is an arithmetic number, because the mean of its divisors is an integer number (8376036240).

Almost surely, 2^123321023001 is an apocalyptic number.

123321023001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123321023001 is a deficient number, since it is larger than the sum of its proper divisors (77703846759).

123321023001 is a wasteful number, since it uses less digits than its factorization.

123321023001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42954077 (or 42954074 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 123321023001 its reverse (100320123321), we get a palindrome (223641146322).

The spelling of 123321023001 in words is "one hundred twenty-three billion, three hundred twenty-one million, twenty-three thousand, one".