83121322312138 has 32 divisors (see below), whose sum is σ = 140816101752000. Its totient is φ = 36451276149120.

The previous prime is 83121322312103. The next prime is 83121322312151.

83121322312138 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 83121322312138.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49714548 + ... + 51359311.

It is an arithmetic number, because the mean of its divisors is an integer number (4400503179750).

Almost surely, 2^{83121322312138} is an apocalyptic number.

83121322312138 is a deficient number, since it is larger than the sum of its proper divisors (57694779439862).

83121322312138 is a wasteful number, since it uses less digits than its factorization.

83121322312138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101075190.

The product of its digits is 82944, while the sum is 40.

The spelling of 83121322312138 in words is "eighty-three trillion, one hundred twenty-one billion, three hundred twenty-two million, three hundred twelve thousand, one hundred thirty-eight".