201123131103021 has 8 divisors (see below), whose sum is σ = 268206747328800. Its totient is φ = 134060801139632.

The previous prime is 201123131102951. The next prime is 201123131103049. The reversal of 201123131103021 is 120301131321102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201123131103021 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201123131103121) 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, 5321543550 + ... + 5321581343.

It is an arithmetic number, because the mean of its divisors is an integer number (33525843416100).

Almost surely, 2^{201123131103021} is an apocalyptic number.

It is an amenable number.

201123131103021 is a deficient number, since it is larger than the sum of its proper divisors (67083616225779).

201123131103021 is a wasteful number, since it uses less digits than its factorization.

201123131103021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10643131195.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 201123131103021 its reverse (120301131321102), we get a palindrome (321424262424123).

The spelling of 201123131103021 in words is "two hundred one trillion, one hundred twenty-three billion, one hundred thirty-one million, one hundred three thousand, twenty-one".