1011009201 has 16 divisors (see below), whose sum is σ = 1418218368. Its totient is φ = 639792000.

The previous prime is 1011009179. The next prime is 1011009217. The reversal of 1011009201 is 1029001101.

It is a de Polignac number, because none of the positive numbers 2^k-1011009201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011009271) 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, 106525 + ... + 115626.

It is an arithmetic number, because the mean of its divisors is an integer number (88638648).

Almost surely, 2^1011009201 is an apocalyptic number.

It is an amenable number.

1011009201 is a deficient number, since it is larger than the sum of its proper divisors (407209167).

1011009201 is a wasteful number, since it uses less digits than its factorization.

1011009201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222232.

The product of its (nonzero) digits is 18, while the sum is 15.

The square root of 1011009201 is about 31796.3708778219. The cubic root of 1011009201 is about 1003.6563484886.

The spelling of 1011009201 in words is "one billion, eleven million, nine thousand, two hundred one".