201023331032123 has 4 divisors (see below), whose sum is σ = 212848232857560. Its totient is φ = 189198429206688.

The previous prime is 201023331032071. The next prime is 201023331032149. The reversal of 201023331032123 is 321230133320102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201023331032123 - 2⁶ = 201023331032059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201023331032092 and 201023331032101.

It is not an unprimeable number, because it can be changed into a prime (201023331032323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5912450912693 + ... + 5912450912726.

It is an arithmetic number, because the mean of its divisors is an integer number (53212058214390).

Almost surely, 2^{201023331032123} is an apocalyptic number.

201023331032123 is a deficient number, since it is larger than the sum of its proper divisors (11824901825437).

201023331032123 is a wasteful number, since it uses less digits than its factorization.

201023331032123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11824901825436.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 201023331032123 its reverse (321230133320102), we get a palindrome (522253464352225).

The spelling of 201023331032123 in words is "two hundred one trillion, twenty-three billion, three hundred thirty-one million, thirty-two thousand, one hundred twenty-three".