123121131301 has 12 divisors (see below), whose sum is σ = 143404570848. Its totient is φ = 105398270712.

The previous prime is 123121131277. The next prime is 123121131359. The reversal of 123121131301 is 103131121321.

It is not a de Polignac number, because 123121131301 - 2⁵ = 123121131269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123121131361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1557801 + ... + 1634926.

It is an arithmetic number, because the mean of its divisors is an integer number (11950380904).

Almost surely, 2^123121131301 is an apocalyptic number.

It is an amenable number.

123121131301 is a deficient number, since it is larger than the sum of its proper divisors (20283439547).

123121131301 is an equidigital number, since it uses as much as digits as its factorization.

123121131301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3193528 (or 3193521 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 123121131301 its reverse (103131121321), we get a palindrome (226252252622).

The spelling of 123121131301 in words is "one hundred twenty-three billion, one hundred twenty-one million, one hundred thirty-one thousand, three hundred one".