131005105340 has 48 divisors (see below), whose sum is σ = 284194842624. Its totient is φ = 50674228800.

The previous prime is 131005105337. The next prime is 131005105457. The reversal of 131005105340 is 43501500131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 770255 + ... + 924825.

It is an arithmetic number, because the mean of its divisors is an integer number (5920725888).

Almost surely, 2^131005105340 is an apocalyptic number.

131005105340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131005105340 is an abundant number, since it is smaller than the sum of its proper divisors (153189737284).

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

131005105340 is a wasteful number, since it uses less digits than its factorization.

131005105340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155978 (or 155976 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 131005105340 its reverse (43501500131), we get a palindrome (174506605471).

The spelling of 131005105340 in words is "one hundred thirty-one billion, five million, one hundred five thousand, three hundred forty".