201101930 has 16 divisors (see below), whose sum is σ = 363153024. Its totient is φ = 80180880.

The previous prime is 201101917. The next prime is 201101939. The reversal of 201101930 is 39101102.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201101899 and 201101908.

It is not an unprimeable number, because it can be changed into a prime (201101939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29222 + ... + 35441.

It is an arithmetic number, because the mean of its divisors is an integer number (22697064).

Almost surely, 2^201101930 is an apocalyptic number.

201101930 is a deficient number, since it is larger than the sum of its proper divisors (162051094).

201101930 is a wasteful number, since it uses less digits than its factorization.

201101930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64981.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 201101930 is about 14181.0412170616. The cubic root of 201101930 is about 585.8756021204.

The spelling of 201101930 in words is "two hundred one million, one hundred one thousand, nine hundred thirty".