130021010442 has 12 divisors (see below), whose sum is σ = 281712189330. Its totient is φ = 43340336808.

The previous prime is 130021010423. The next prime is 130021010503. The reversal of 130021010442 is 244010120031.

130021010442 is a `hidden beast` number, since 1 + 3 + 0 + 0 + 210 + 10 + 442 = 666.

It can be written as a sum of positive squares in only one way, i.e., 75437566281 + 54583444161 = 274659^2 + 233631^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 7223389469 = 130021010442 / (1 + 3 + 0 + 0 + 2 + 1 + 0 + 1 + 0 + 4 + 4 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3611694717 + ... + 3611694752.

Almost surely, 2^130021010442 is an apocalyptic number.

130021010442 is an abundant number, since it is smaller than the sum of its proper divisors (151691178888).

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

130021010442 is a wasteful number, since it uses less digits than its factorization.

130021010442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7223389477 (or 7223389474 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 130021010442 its reverse (244010120031), we get a palindrome (374031130473).

The spelling of 130021010442 in words is "one hundred thirty billion, twenty-one million, ten thousand, four hundred forty-two".