991203013201202 has 16 divisors (see below), whose sum is σ = 1487147624034624. Its totient is φ = 495487141890000.

The previous prime is 991203013201153. The next prime is 991203013201223. The reversal of 991203013201202 is 202102310302199.

991203013201202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613786052 + ... + 615398832.

It is an arithmetic number, because the mean of its divisors is an integer number (92946726502164).

Almost surely, 2^{991203013201202} is an apocalyptic number.

991203013201202 is a deficient number, since it is larger than the sum of its proper divisors (495944610833422).

991203013201202 is a wasteful number, since it uses less digits than its factorization.

991203013201202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683505.

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 991203013201202 in words is "nine hundred ninety-one trillion, two hundred three billion, thirteen million, two hundred one thousand, two hundred two".