131323140530 has 16 divisors (see below), whose sum is σ = 236399192280. Its totient is φ = 52525358592.

The previous prime is 131323140517. The next prime is 131323140581. The reversal of 131323140530 is 35041323131.

It can be written as a sum of positive squares in 4 ways, for example, as 79141505041 + 52181635489 = 281321^2 + 228433^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131323140530.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343679 + ... + 617058.

Almost surely, 2^131323140530 is an apocalyptic number.

131323140530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131323140530 is a deficient number, since it is larger than the sum of its proper divisors (105076051750).

131323140530 is a wasteful number, since it uses less digits than its factorization.

131323140530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974413.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 131323140530 its reverse (35041323131), we get a palindrome (166364463661).

The spelling of 131323140530 in words is "one hundred thirty-one billion, three hundred twenty-three million, one hundred forty thousand, five hundred thirty".