10002120045 has 8 divisors (see below), whose sum is σ = 16003392096. Its totient is φ = 5334464016.

The previous prime is 10002120031. The next prime is 10002120061. The reversal of 10002120045 is 54002120001.

10002120045 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10002120045 - 2¹³ = 10002111853 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 666808003 = 10002120045 / (1 + 0 + 0 + 0 + 2 + 1 + 2 + 0 + 0 + 4 + 5).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333403987 + ... + 333404016.

It is an arithmetic number, because the mean of its divisors is an integer number (2000424012).

Almost surely, 2^10002120045 is an apocalyptic number.

10002120045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10002120045 is a deficient number, since it is larger than the sum of its proper divisors (6001272051).

10002120045 is an equidigital number, since it uses as much as digits as its factorization.

10002120045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666808011.

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 10002120045 its reverse (54002120001), we get a palindrome (64004240046).

The spelling of 10002120045 in words is "ten billion, two million, one hundred twenty thousand, forty-five".