131500233331 has 16 divisors (see below), whose sum is σ = 140802425280. Its totient is φ = 122376821760.

The previous prime is 131500233329. The next prime is 131500233353. The reversal of 131500233331 is 133332005131.

It is a cyclic number.

It is not a de Polignac number, because 131500233331 - 2¹ = 131500233329 is a prime.

It is a super-2 number, since 2×131500233331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131500233296 and 131500233305.

It is not an unprimeable number, because it can be changed into a prime (131500237331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 829551 + ... + 975271.

It is an arithmetic number, because the mean of its divisors is an integer number (8800151580).

Almost surely, 2^131500233331 is an apocalyptic number.

131500233331 is a deficient number, since it is larger than the sum of its proper divisors (9302191949).

131500233331 is a wasteful number, since it uses less digits than its factorization.

131500233331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146334.

The product of its (nonzero) digits is 2430, while the sum is 25.

Adding to 131500233331 its reverse (133332005131), we get a palindrome (264832238462).

The spelling of 131500233331 in words is "one hundred thirty-one billion, five hundred million, two hundred thirty-three thousand, three hundred thirty-one".