131000320220240 has 40 divisors (see below), whose sum is σ = 304578152188128. Its totient is φ = 52399713864320.

The previous prime is 131000320220177. The next prime is 131000320220303. The reversal of 131000320220240 is 42022023000131.

It is an interprime number because it is at equal distance from previous prime (131000320220177) and next prime (131000320220303).

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×131000320220240² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3812675 + ... + 16629405.

Almost surely, 2^{131000320220240} is an apocalyptic number.

131000320220240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131000320220240 is an abundant number, since it is smaller than the sum of its proper divisors (173577831967888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131000320220240 is a wasteful number, since it uses less digits than its factorization.

131000320220240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12944507 (or 12944501 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 131000320220240 its reverse (42022023000131), we get a palindrome (173022343220371).

The spelling of 131000320220240 in words is "one hundred thirty-one trillion, three hundred twenty million, two hundred twenty thousand, two hundred forty".