201001123113 has 48 divisors (see below), whose sum is σ = 320451417216. Its totient is φ = 111692904960.

The previous prime is 201001123051. The next prime is 201001123117. The reversal of 201001123113 is 311321100102.

It is a happy number.

It is not a de Polignac number, because 201001123113 - 2²² = 200996928809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201001123092 and 201001123101.

It is not an unprimeable number, because it can be changed into a prime (201001123117) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 766228 + ... + 994538.

It is an arithmetic number, because the mean of its divisors is an integer number (6676071192).

Almost surely, 2^201001123113 is an apocalyptic number.

It is an amenable number.

201001123113 is a deficient number, since it is larger than the sum of its proper divisors (119450294103).

201001123113 is a wasteful number, since it uses less digits than its factorization.

201001123113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228494 (or 228487 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 201001123113 its reverse (311321100102), we get a palindrome (512322223215).

The spelling of 201001123113 in words is "two hundred one billion, one million, one hundred twenty-three thousand, one hundred thirteen".