131453344340 has 48 divisors (see below), whose sum is σ = 281348257680. Its totient is φ = 51573150720.

The previous prime is 131453344313. The next prime is 131453344357. The reversal of 131453344340 is 43443354131.

It can be written as a sum of positive squares in 8 ways, for example, as 7198504336 + 124254840004 = 84844^2 + 352498^2 .

It is a super-2 number, since 2×131453344340² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131453344340.

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, 3723170 + ... + 3758310.

It is an arithmetic number, because the mean of its divisors is an integer number (5861422035).

Almost surely, 2^131453344340 is an apocalyptic number.

131453344340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131453344340 is an abundant number, since it is smaller than the sum of its proper divisors (149894913340).

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

131453344340 is a wasteful number, since it uses less digits than its factorization.

131453344340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38732 (or 38730 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 131453344340 its reverse (43443354131), we get a palindrome (174896698471).

The spelling of 131453344340 in words is "one hundred thirty-one billion, four hundred fifty-three million, three hundred forty-four thousand, three hundred forty".