130231400240 has 40 divisors (see below), whose sum is σ = 306190134720. Its totient is φ = 51507247616.

The previous prime is 130231400227. The next prime is 130231400261. The reversal of 130231400240 is 42004132031.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 9138344 + ... + 9152583.

It is an arithmetic number, because the mean of its divisors is an integer number (7654753368).

Almost surely, 2^130231400240 is an apocalyptic number.

130231400240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130231400240 is an abundant number, since it is smaller than the sum of its proper divisors (175958734480).

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

130231400240 is a wasteful number, since it uses less digits than its factorization.

130231400240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18291029 (or 18291023 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 130231400240 its reverse (42004132031), we get a palindrome (172235532271).

The spelling of 130231400240 in words is "one hundred thirty billion, two hundred thirty-one million, four hundred thousand, two hundred forty".