83121103313238 has 32 divisors (see below), whose sum is σ = 166269479201280. Its totient is φ = 27702489402720.

The previous prime is 83121103313221. The next prime is 83121103313239. The reversal of 83121103313238 is 83231330112138.

It is a super-2 number, since 2×83121103313238² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83121103313196 and 83121103313205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83121103313239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1219268893 + ... + 1219337063.

It is an arithmetic number, because the mean of its divisors is an integer number (5195921225040).

Almost surely, 2^{83121103313238} is an apocalyptic number.

83121103313238 is an abundant number, since it is smaller than the sum of its proper divisors (83148375888042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83121103313238 is a wasteful number, since it uses less digits than its factorization.

83121103313238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98532.

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 83121103313238 in words is "eighty-three trillion, one hundred twenty-one billion, one hundred three million, three hundred thirteen thousand, two hundred thirty-eight".