21130132302 has 12 divisors (see below), whose sum is σ = 45781953360. Its totient is φ = 7043377428.

The previous prime is 21130132297. The next prime is 21130132333. The reversal of 21130132302 is 20323103112.

It is a super-2 number, since 2×21130132302² (a number of 21 digits) contains 22 as substring.

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: 1173896239 = 21130132302 / (2 + 1 + 1 + 3 + 0 + 1 + 3 + 2 + 3 + 0 + 2).

It is a congruent number.

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, 586948102 + ... + 586948137.

It is an arithmetic number, because the mean of its divisors is an integer number (3815162780).

Almost surely, 2^21130132302 is an apocalyptic number.

21130132302 is an abundant number, since it is smaller than the sum of its proper divisors (24651821058).

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

21130132302 is a wasteful number, since it uses less digits than its factorization.

21130132302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173896247 (or 1173896244 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21130132302 its reverse (20323103112), we get a palindrome (41453235414).

The spelling of 21130132302 in words is "twenty-one billion, one hundred thirty million, one hundred thirty-two thousand, three hundred two".