123011213201 has 8 divisors (see below), whose sum is σ = 129489131520. Its totient is φ = 116533659312.

The previous prime is 123011213177. The next prime is 123011213209. The reversal of 123011213201 is 102312110321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123011213201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123011213201.

It is not an unprimeable number, because it can be changed into a prime (123011213209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 852371 + ... + 986183.

It is an arithmetic number, because the mean of its divisors is an integer number (16186141440).

Almost surely, 2^123011213201 is an apocalyptic number.

It is an amenable number.

123011213201 is a deficient number, since it is larger than the sum of its proper divisors (6477918319).

123011213201 is a wasteful number, since it uses less digits than its factorization.

123011213201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182215.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 123011213201 its reverse (102312110321), we get a palindrome (225323323522).

The spelling of 123011213201 in words is "one hundred twenty-three billion, eleven million, two hundred thirteen thousand, two hundred one".