201331121023 has 8 divisors (see below), whose sum is σ = 222442568928. Its totient is φ = 181249499904.

The previous prime is 201331120967. The next prime is 201331121039. The reversal of 201331121023 is 320121133102.

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

It is a cyclic number.

It is not a de Polignac number, because 201331121023 - 2³³ = 192741186431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201331121053) 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, 257456286 + ... + 257457067.

It is an arithmetic number, because the mean of its divisors is an integer number (27805321116).

Almost surely, 2^201331121023 is an apocalyptic number.

201331121023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

201331121023 is a deficient number, since it is larger than the sum of its proper divisors (21111447905).

201331121023 is a wasteful number, since it uses less digits than its factorization.

201331121023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514913393.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 201331121023 its reverse (320121133102), we get a palindrome (521452254125).

The spelling of 201331121023 in words is "two hundred one billion, three hundred thirty-one million, one hundred twenty-one thousand, twenty-three".