83121633828301 has 4 divisors (see below), whose sum is σ = 88011141700572. Its totient is φ = 78232125956032.

The previous prime is 83121633828241. The next prime is 83121633828323. The reversal of 83121633828301 is 10382833612138.

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 62133333300900 + 20988300527401 = 7882470^2 + 4581299^2 .

It is a cyclic number.

It is not a de Polignac number, because 83121633828301 - 2¹⁷ = 83121633697229 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 (83121633838301) 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, 2444753936110 + ... + 2444753936143.

It is an arithmetic number, because the mean of its divisors is an integer number (22002785425143).

Almost surely, 2^{83121633828301} is an apocalyptic number.

It is an amenable number.

83121633828301 is a deficient number, since it is larger than the sum of its proper divisors (4889507872271).

83121633828301 is a wasteful number, since it uses less digits than its factorization.

83121633828301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4889507872270.

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 83121633828301 in words is "eighty-three trillion, one hundred twenty-one billion, six hundred thirty-three million, eight hundred twenty-eight thousand, three hundred one".