10003121209999 has 8 divisors (see below), whose sum is σ = 10090336965120. Its totient is φ = 9916037502336.

The previous prime is 10003121209987. The next prime is 10003121210011. The reversal of 10003121209999 is 99990212130001.

It is an interprime number because it is at equal distance from previous prime (10003121209987) and next prime (10003121210011).

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 10003121209999 - 2²³ = 10003112821391 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 (10003121209909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32859694 + ... + 33162715.

It is an arithmetic number, because the mean of its divisors is an integer number (1261292120640).

Almost surely, 2^{10003121209999} is an apocalyptic number.

10003121209999 is a deficient number, since it is larger than the sum of its proper divisors (87215755121).

10003121209999 is a wasteful number, since it uses less digits than its factorization.

10003121209999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66023729.

The product of its (nonzero) digits is 78732, while the sum is 46.

The spelling of 10003121209999 in words is "ten trillion, three billion, one hundred twenty-one million, two hundred nine thousand, nine hundred ninety-nine".