201011020989 has 16 divisors (see below), whose sum is σ = 281971959360. Its totient is φ = 127205389440.

The previous prime is 201011020957. The next prime is 201011021017. The reversal of 201011020989 is 989020110102.

It is not a de Polignac number, because 201011020989 - 2⁵ = 201011020957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201011020909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22079719 + ... + 22088820.

It is an arithmetic number, because the mean of its divisors is an integer number (17623247460).

Almost surely, 2^201011020989 is an apocalyptic number.

It is an amenable number.

201011020989 is a deficient number, since it is larger than the sum of its proper divisors (80960938371).

201011020989 is a wasteful number, since it uses less digits than its factorization.

201011020989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44168620.

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 201011020989 in words is "two hundred one billion, eleven million, twenty thousand, nine hundred eighty-nine".