131020240321233 has 32 divisors (see below), whose sum is σ = 197767930752000. Its totient is φ = 85698110429568.

The previous prime is 131020240321219. The next prime is 131020240321253. The reversal of 131020240321233 is 332123042020131.

131020240321233 is a `hidden beast` number, since 1 + 3 + 1 + 0 + 2 + 0 + 2 + 403 + 21 + 233 = 666.

It is not a de Polignac number, because 131020240321233 - 2¹⁸ = 131020240059089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131020240321197 and 131020240321206.

It is not an unprimeable number, because it can be changed into a prime (131020240321253) 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, 243082368 + ... + 243620766.

It is an arithmetic number, because the mean of its divisors is an integer number (6180247836000).

Almost surely, 2^{131020240321233} is an apocalyptic number.

It is an amenable number.

131020240321233 is a deficient number, since it is larger than the sum of its proper divisors (66747690430767).

131020240321233 is a wasteful number, since it uses less digits than its factorization.

131020240321233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708518 (or 708512 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 131020240321233 its reverse (332123042020131), we get a palindrome (463143282341364).

The spelling of 131020240321233 in words is "one hundred thirty-one trillion, twenty billion, two hundred forty million, three hundred twenty-one thousand, two hundred thirty-three".