131220010233 has 32 divisors (see below), whose sum is σ = 209591988480. Its totient is φ = 80658927360.

The previous prime is 131220010199. The next prime is 131220010247. The reversal of 131220010233 is 332010022131.

It is not a de Polignac number, because 131220010233 - 2³³ = 122630075641 is a prime.

It is a super-3 number, since 3×131220010233³ (a number of 34 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131220010283) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97060 + ... + 521402.

It is an arithmetic number, because the mean of its divisors is an integer number (6549749640).

Almost surely, 2^131220010233 is an apocalyptic number.

131220010233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

131220010233 is a deficient number, since it is larger than the sum of its proper divisors (78371978247).

131220010233 is a wasteful number, since it uses less digits than its factorization.

131220010233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425246 (or 425240 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 131220010233 its reverse (332010022131), we get a palindrome (463230032364).

The spelling of 131220010233 in words is "one hundred thirty-one billion, two hundred twenty million, ten thousand, two hundred thirty-three".