201101211123 has 8 divisors (see below), whose sum is σ = 269740547328. Its totient is φ = 133264674504.

The previous prime is 201101211053. The next prime is 201101211127. The reversal of 201101211123 is 321112101102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201101211123 - 2¹⁷ = 201101080051 is a prime.

It is a super-2 number, since 2×201101211123² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201101211127) 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, 200699311 + ... + 200700312.

It is an arithmetic number, because the mean of its divisors is an integer number (33717568416).

Almost surely, 2^201101211123 is an apocalyptic number.

201101211123 is a deficient number, since it is larger than the sum of its proper divisors (68639336205).

201101211123 is a wasteful number, since it uses less digits than its factorization.

201101211123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401399793.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 201101211123 its reverse (321112101102), we get a palindrome (522213312225).

The spelling of 201101211123 in words is "two hundred one billion, one hundred one million, two hundred eleven thousand, one hundred twenty-three".