32400021130 has 32 divisors (see below), whose sum is σ = 61444584000. Its totient is φ = 12266888832.

The previous prime is 32400021119. The next prime is 32400021131. The reversal of 32400021130 is 3112000423.

It is a happy number.

It is a super-2 number, since 2×32400021130² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (32400021131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137446 + ... + 289294.

It is an arithmetic number, because the mean of its divisors is an integer number (1920143250).

Almost surely, 2^32400021130 is an apocalyptic number.

32400021130 is a deficient number, since it is larger than the sum of its proper divisors (29044562870).

32400021130 is a wasteful number, since it uses less digits than its factorization.

32400021130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152998.

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

Adding to 32400021130 its reverse (3112000423), we get a palindrome (35512021553).

The spelling of 32400021130 in words is "thirty-two billion, four hundred million, twenty-one thousand, one hundred thirty".