130512232355440 has 160 divisors (see below), whose sum is σ = 338062743849600. Its totient is φ = 46525809684480.

The previous prime is 130512232355423. The next prime is 130512232355443. The reversal of 130512232355440 is 44553232215031.

It is a super-2 number, since 2×130512232355440² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 130512232355393 and 130512232355402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130512232355443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1152990366 + ... + 1153103554.

It is an arithmetic number, because the mean of its divisors is an integer number (2112892149060).

Almost surely, 2^{130512232355440} is an apocalyptic number.

130512232355440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130512232355440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169031371924800).

130512232355440 is an abundant number, since it is smaller than the sum of its proper divisors (207550511494160).

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

130512232355440 is a wasteful number, since it uses less digits than its factorization.

130512232355440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151475 (or 151469 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 40.

The spelling of 130512232355440 in words is "one hundred thirty trillion, five hundred twelve billion, two hundred thirty-two million, three hundred fifty-five thousand, four hundred forty".