83512521101 has 4 divisors (see below), whose sum is σ = 83513373600. Its totient is φ = 83511668604.

The previous prime is 83512521047. The next prime is 83512521139. The reversal of 83512521101 is 10112521538.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 83512521101 - 2¹⁴ = 83512504717 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 (83512521901) 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, 256871 + ... + 482708.

It is an arithmetic number, because the mean of its divisors is an integer number (20878343400).

Almost surely, 2^83512521101 is an apocalyptic number.

It is an amenable number.

83512521101 is a deficient number, since it is larger than the sum of its proper divisors (852499).

83512521101 is a wasteful number, since it uses less digits than its factorization.

83512521101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852498.

The product of its (nonzero) digits is 2400, while the sum is 29.

The spelling of 83512521101 in words is "eighty-three billion, five hundred twelve million, five hundred twenty-one thousand, one hundred one".