123220125305001 has 6 divisors (see below), whose sum is σ = 177984625440570. Its totient is φ = 82146750203328.

The previous prime is 123220125304999. The next prime is 123220125305009. The reversal of 123220125305001 is 100503521022321.

123220125305001 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 2 + 0 + 125 + 30 + 500 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 123189488053776 + 30637251225 = 11099076^2 + 175035^2 .

It is not a de Polignac number, because 123220125305001 - 2¹ = 123220125304999 is a prime.

It is a super-2 number, since 2×123220125305001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123220125305009) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6845562516936 + ... + 6845562516953.

It is an arithmetic number, because the mean of its divisors is an integer number (29664104240095).

Almost surely, 2^{123220125305001} is an apocalyptic number.

It is an amenable number.

123220125305001 is a deficient number, since it is larger than the sum of its proper divisors (54764500135569).

123220125305001 is a wasteful number, since it uses less digits than its factorization.

123220125305001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13691125033895 (or 13691125033892 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 123220125305001 its reverse (100503521022321), we get a palindrome (223723646327322).

The spelling of 123220125305001 in words is "one hundred twenty-three trillion, two hundred twenty billion, one hundred twenty-five million, three hundred five thousand, one".