10203121013099 has 16 divisors (see below), whose sum is σ = 11911248384000. Its totient is φ = 8736297032232.

The previous prime is 10203121013089. The next prime is 10203121013123. The reversal of 10203121013099 is 99031012130201.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-10203121013099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10203121013009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15380939 + ... + 16030580.

It is an arithmetic number, because the mean of its divisors is an integer number (744453024000).

Almost surely, 2^{10203121013099} is an apocalyptic number.

10203121013099 is a deficient number, since it is larger than the sum of its proper divisors (1708127370901).

10203121013099 is an frugal number, since it uses more digits than its factorization.

10203121013099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31412487 (or 31412473 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 32.

The spelling of 10203121013099 in words is "ten trillion, two hundred three billion, one hundred twenty-one million, thirteen thousand, ninety-nine".