9911000001203 has 24 divisors (see below), whose sum is σ = 11812827681072. Its totient is φ = 8286618924864.

The previous prime is 9911000001169. The next prime is 9911000001283. The reversal of 9911000001203 is 3021000001199.

It is not a de Polignac number, because 9911000001203 - 2³⁶ = 9842280524467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9911000001283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1511900 + ... + 4701897.

It is an arithmetic number, because the mean of its divisors is an integer number (492201153378).

Almost surely, 2^{9911000001203} is an apocalyptic number.

9911000001203 is a deficient number, since it is larger than the sum of its proper divisors (1901827679869).

9911000001203 is a wasteful number, since it uses less digits than its factorization.

9911000001203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6214611 (or 6214604 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 26.

The spelling of 9911000001203 in words is "nine trillion, nine hundred eleven billion, one thousand, two hundred three".