31200123301 has 4 divisors (see below), whose sum is σ = 31200956172. Its totient is φ = 31199290432.

The previous prime is 31200123299. The next prime is 31200123343. The reversal of 31200123301 is 10332100213.

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 10322763201 + 20877360100 = 101601^2 + 144490^2 .

It is a cyclic number.

It is not a de Polignac number, because 31200123301 - 2¹ = 31200123299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31200123701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357460 + ... + 436093.

It is an arithmetic number, because the mean of its divisors is an integer number (7800239043).

Almost surely, 2^31200123301 is an apocalyptic number.

It is an amenable number.

31200123301 is a deficient number, since it is larger than the sum of its proper divisors (832871).

31200123301 is an equidigital number, since it uses as much as digits as its factorization.

31200123301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832870.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31200123301 its reverse (10332100213), we get a palindrome (41532223514).

The spelling of 31200123301 in words is "thirty-one billion, two hundred million, one hundred twenty-three thousand, three hundred one".