83354121397 has 2 divisors, whose sum is σ = 83354121398. Its totient is φ = 83354121396.

The previous prime is 83354121373. The next prime is 83354121401. The reversal of 83354121397 is 79312145338.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52897240036 + 30456881361 = 229994^2 + 174519^2 .

It is a cyclic number.

It is not a de Polignac number, because 83354121397 - 2¹⁹ = 83353597109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83354121797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41677060698 + 41677060699.

It is an arithmetic number, because the mean of its divisors is an integer number (41677060699).

Almost surely, 2^83354121397 is an apocalyptic number.

It is an amenable number.

83354121397 is a deficient number, since it is larger than the sum of its proper divisors (1).

83354121397 is an equidigital number, since it uses as much as digits as its factorization.

83354121397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 46.

The spelling of 83354121397 in words is "eighty-three billion, three hundred fifty-four million, one hundred twenty-one thousand, three hundred ninety-seven".