123001021201 has 16 divisors (see below), whose sum is σ = 129502856448. Its totient is φ = 116598240000.

The previous prime is 123001021123. The next prime is 123001021207. The reversal of 123001021201 is 102120100321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123001021201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123001021207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1861276 + ... + 1926226.

It is an arithmetic number, because the mean of its divisors is an integer number (8093928528).

Almost surely, 2^123001021201 is an apocalyptic number.

It is an amenable number.

123001021201 is a deficient number, since it is larger than the sum of its proper divisors (6501835247).

123001021201 is a wasteful number, since it uses less digits than its factorization.

123001021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65712.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 123001021201 its reverse (102120100321), we get a palindrome (225121121522).

The spelling of 123001021201 in words is "one hundred twenty-three billion, one million, twenty-one thousand, two hundred one".