130142322440 has 32 divisors (see below), whose sum is σ = 315344859480. Its totient is φ = 48052549632.

The previous prime is 130142322397. The next prime is 130142322491. The reversal of 130142322440 is 44223241031.

It can be written as a sum of positive squares in 4 ways, for example, as 43728664996 + 86413657444 = 209114^2 + 293962^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125136329 + ... + 125137368.

Almost surely, 2^130142322440 is an apocalyptic number.

130142322440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130142322440 is an abundant number, since it is smaller than the sum of its proper divisors (185202537040).

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

130142322440 is a wasteful number, since it uses less digits than its factorization.

130142322440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250273721 (or 250273717 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 130142322440 its reverse (44223241031), we get a palindrome (174365563471).

The spelling of 130142322440 in words is "one hundred thirty billion, one hundred forty-two million, three hundred twenty-two thousand, four hundred forty".