83121101431327 has 4 divisors (see below), whose sum is σ = 83232973708560. Its totient is φ = 83009229154096.

The previous prime is 83121101431321. The next prime is 83121101431343. The reversal of 83121101431327 is 72313410112138.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83121101431327 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 (83121101431321) 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, 55936137502 + ... + 55936138987.

It is an arithmetic number, because the mean of its divisors is an integer number (20808243427140).

Almost surely, 2^{83121101431327} is an apocalyptic number.

83121101431327 is a deficient number, since it is larger than the sum of its proper divisors (111872277233).

83121101431327 is a wasteful number, since it uses less digits than its factorization.

83121101431327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111872277232.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 83121101431327 in words is "eighty-three trillion, one hundred twenty-one billion, one hundred one million, four hundred thirty-one thousand, three hundred twenty-seven".