123102012013201 has 4 divisors (see below), whose sum is σ = 132571397552692. Its totient is φ = 113632626473712.

The previous prime is 123102012013187. The next prime is 123102012013223. The reversal of 123102012013201 is 102310210201321.

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 47930684393601 + 75171327619600 = 6923199^2 + 8670140^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123102012013201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123102012019201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4734692769726 + ... + 4734692769751.

It is an arithmetic number, because the mean of its divisors is an integer number (33142849388173).

Almost surely, 2^{123102012013201} is an apocalyptic number.

It is an amenable number.

123102012013201 is a deficient number, since it is larger than the sum of its proper divisors (9469385539491).

123102012013201 is an equidigital number, since it uses as much as digits as its factorization.

123102012013201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9469385539490.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 123102012013201 its reverse (102310210201321), we get a palindrome (225412222214522).

The spelling of 123102012013201 in words is "one hundred twenty-three trillion, one hundred two billion, twelve million, thirteen thousand, two hundred one".