20130223132 has 48 divisors (see below), whose sum is σ = 38870092800. Its totient is φ = 9086394240.

The previous prime is 20130223121. The next prime is 20130223133. The reversal of 20130223132 is 23132203102.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130223133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58869 + ... + 209107.

It is an arithmetic number, because the mean of its divisors is an integer number (809793600).

Almost surely, 2^20130223132 is an apocalyptic number.

It is an amenable number.

20130223132 is a deficient number, since it is larger than the sum of its proper divisors (18739869668).

20130223132 is a wasteful number, since it uses less digits than its factorization.

20130223132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150346 (or 150344 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20130223132 its reverse (23132203102), we get a palindrome (43262426234).

The spelling of 20130223132 in words is "twenty billion, one hundred thirty million, two hundred twenty-three thousand, one hundred thirty-two".