21130433010 has 64 divisors (see below), whose sum is σ = 56433801600. Its totient is φ = 5626184256.

The previous prime is 21130432997. The next prime is 21130433053. The reversal of 21130433010 is 1033403112.

21130433010 is a `hidden beast` number, since 21 + 1 + 304 + 330 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118552 + ... + 237308.

It is an arithmetic number, because the mean of its divisors is an integer number (881778150).

Almost surely, 2^21130433010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21130433010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28216900800).

21130433010 is an abundant number, since it is smaller than the sum of its proper divisors (35303368590).

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

21130433010 is a wasteful number, since it uses less digits than its factorization.

21130433010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119432 (or 119426 counting only the distinct ones).

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

Adding to 21130433010 its reverse (1033403112), we get a palindrome (22163836122).

The spelling of 21130433010 in words is "twenty-one billion, one hundred thirty million, four hundred thirty-three thousand, ten".