39990121301 has 8 divisors (see below), whose sum is σ = 43067905944. Its totient is φ = 36912568320.

The previous prime is 39990121279. The next prime is 39990121331. The reversal of 39990121301 is 10312109993.

It can be written as a sum of positive squares in 4 ways, for example, as 726302500 + 39263818801 = 26950^2 + 198151^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39990121301 - 2¹⁰ = 39990120277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39990121331) 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 in 7 ways as a sum of consecutive naturals, for example, 499061 + ... + 573621.

It is an arithmetic number, because the mean of its divisors is an integer number (5383488243).

Almost surely, 2^39990121301 is an apocalyptic number.

It is an amenable number.

39990121301 is a deficient number, since it is larger than the sum of its proper divisors (3077784643).

39990121301 is a wasteful number, since it uses less digits than its factorization.

39990121301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115831.

The product of its (nonzero) digits is 13122, while the sum is 38.

The spelling of 39990121301 in words is "thirty-nine billion, nine hundred ninety million, one hundred twenty-one thousand, three hundred one".