126731131120 has 60 divisors (see below), whose sum is σ = 323871380280. Its totient is φ = 46084044160.

The previous prime is 126731131103. The next prime is 126731131129. The reversal of 126731131120 is 21131137621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126731131129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6536350 + ... + 6555709.

It is an arithmetic number, because the mean of its divisors is an integer number (5397856338).

Almost surely, 2^126731131120 is an apocalyptic number.

126731131120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126731131120 is an abundant number, since it is smaller than the sum of its proper divisors (197140249160).

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

126731131120 is a wasteful number, since it uses less digits than its factorization.

126731131120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13092094 (or 13092077 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

Adding to 126731131120 its reverse (21131137621), we get a palindrome (147862268741).

The spelling of 126731131120 in words is "one hundred twenty-six billion, seven hundred thirty-one million, one hundred thirty-one thousand, one hundred twenty".