130420322440 has 16 divisors (see below), whose sum is σ = 293445725580. Its totient is φ = 52168128960.

The previous prime is 130420322429. The next prime is 130420322449. The reversal of 130420322440 is 44223024031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 118565903556 + 11854418884 = 344334^2 + 108878^2 .

It is not an unprimeable number, because it can be changed into a prime (130420322449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1630253991 + ... + 1630254070.

Almost surely, 2^130420322440 is an apocalyptic number.

130420322440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130420322440 is an abundant number, since it is smaller than the sum of its proper divisors (163025403140).

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

130420322440 is a wasteful number, since it uses less digits than its factorization.

130420322440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260508072 (or 3260508068 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 130420322440 its reverse (44223024031), we get a palindrome (174643346471).

The spelling of 130420322440 in words is "one hundred thirty billion, four hundred twenty million, three hundred twenty-two thousand, four hundred forty".