21232231130 has 16 divisors (see below), whose sum is σ = 41692381344. Its totient is φ = 7720811280.

The previous prime is 21232231127. The next prime is 21232231133. The reversal of 21232231130 is 3113223212.

It is an interprime number because it is at equal distance from previous prime (21232231127) and next prime (21232231133).

It is not an unprimeable number, because it can be changed into a prime (21232231133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96510032 + ... + 96510251.

It is an arithmetic number, because the mean of its divisors is an integer number (2605773834).

Almost surely, 2^21232231130 is an apocalyptic number.

21232231130 is a deficient number, since it is larger than the sum of its proper divisors (20460150214).

21232231130 is a wasteful number, since it uses less digits than its factorization.

21232231130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193020301.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21232231130 its reverse (3113223212), we get a palindrome (24345454342).

The spelling of 21232231130 in words is "twenty-one billion, two hundred thirty-two million, two hundred thirty-one thousand, one hundred thirty".