201031023233 has 4 divisors (see below), whose sum is σ = 209771502528. Its totient is φ = 192290543940.

The previous prime is 201031023229. The next prime is 201031023239. The reversal of 201031023233 is 332320130102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201031023233 - 2² = 201031023229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201031023239) 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, 4370239613 + ... + 4370239658.

It is an arithmetic number, because the mean of its divisors is an integer number (52442875632).

Almost surely, 2^201031023233 is an apocalyptic number.

201031023233 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

201031023233 is a deficient number, since it is larger than the sum of its proper divisors (8740479295).

201031023233 is an equidigital number, since it uses as much as digits as its factorization.

201031023233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8740479294.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 201031023233 its reverse (332320130102), we get a palindrome (533351153335).

The spelling of 201031023233 in words is "two hundred one billion, thirty-one million, twenty-three thousand, two hundred thirty-three".