21132040030 has 32 divisors (see below), whose sum is σ = 38697523200. Its totient is φ = 8306295072.

The previous prime is 21132040021. The next prime is 21132040067. The reversal of 21132040030 is 3004023112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21132039986 and 21132040013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1976479 + ... + 1987141.

It is an arithmetic number, because the mean of its divisors is an integer number (1209297600).

Almost surely, 2^21132040030 is an apocalyptic number.

21132040030 is a deficient number, since it is larger than the sum of its proper divisors (17565483170).

21132040030 is a wasteful number, since it uses less digits than its factorization.

21132040030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14088.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21132040030 its reverse (3004023112), we get a palindrome (24136063142).

The spelling of 21132040030 in words is "twenty-one billion, one hundred thirty-two million, forty thousand, thirty".