201001203031158 has 40 divisors (see below), whose sum is σ = 450462192244680. Its totient is φ = 66989897389440.

The previous prime is 201001203031147. The next prime is 201001203031159. The reversal of 201001203031158 is 851130302100102.

201001203031158 is a `hidden beast` number, since 20 + 100 + 120 + 303 + 115 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201001203031159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 96219163 + ... + 98285958.

It is an arithmetic number, because the mean of its divisors is an integer number (11261554806117).

Almost surely, 2^{201001203031158} is an apocalyptic number.

201001203031158 is an abundant number, since it is smaller than the sum of its proper divisors (249460989213522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201001203031158 is a wasteful number, since it uses less digits than its factorization.

201001203031158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194511514 (or 194511505 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The spelling of 201001203031158 in words is "two hundred one trillion, one billion, two hundred three million, thirty-one thousand, one hundred fifty-eight".