131005026056 has 8 divisors (see below), whose sum is σ = 245634423870. Its totient is φ = 65502513024.

The previous prime is 131005026029. The next prime is 131005026067. The reversal of 131005026056 is 650620500131.

131005026056 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 69872463556 + 61132562500 = 264334^2 + 247250^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8187814121 + ... + 8187814136.

Almost surely, 2^131005026056 is an apocalyptic number.

It is an amenable number.

131005026056 is a deficient number, since it is larger than the sum of its proper divisors (114629397814).

131005026056 is a wasteful number, since it uses less digits than its factorization.

131005026056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16375628263 (or 16375628259 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 131005026056 its reverse (650620500131), we get a palindrome (781625526187).

The spelling of 131005026056 in words is "one hundred thirty-one billion, five million, twenty-six thousand, fifty-six".