131024351555 has 4 divisors (see below), whose sum is σ = 157229221872. Its totient is φ = 104819481240.

The previous prime is 131024351509. The next prime is 131024351569. The reversal of 131024351555 is 555153420131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 555153420131 = 7673 ⋅72351547.

It is not a de Polignac number, because 131024351555 - 2¹² = 131024347459 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13102435151 + ... + 13102435160.

It is an arithmetic number, because the mean of its divisors is an integer number (39307305468).

Almost surely, 2^131024351555 is an apocalyptic number.

131024351555 is a deficient number, since it is larger than the sum of its proper divisors (26204870317).

131024351555 is an equidigital number, since it uses as much as digits as its factorization.

131024351555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26204870316.

The product of its (nonzero) digits is 45000, while the sum is 35.

Adding to 131024351555 its reverse (555153420131), we get a palindrome (686177771686).

The spelling of 131024351555 in words is "one hundred thirty-one billion, twenty-four million, three hundred fifty-one thousand, five hundred fifty-five".