20131232132330 has 32 divisors (see below), whose sum is σ = 39532584841920. Its totient is φ = 7320047051520.

The previous prime is 20131232132311. The next prime is 20131232132369. The reversal of 20131232132330 is 3323123213102.

It is a self number, because there is not a number n which added to its sum of digits gives 20131232132330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2991524 + ... + 7015103.

It is an arithmetic number, because the mean of its divisors is an integer number (1235393276310).

Almost surely, 2^{20131232132330} is an apocalyptic number.

20131232132330 is a deficient number, since it is larger than the sum of its proper divisors (19401352709590).

20131232132330 is a wasteful number, since it uses less digits than its factorization.

20131232132330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10024934.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 20131232132330 its reverse (3323123213102), we get a palindrome (23454355345432).

The spelling of 20131232132330 in words is "twenty trillion, one hundred thirty-one billion, two hundred thirty-two million, one hundred thirty-two thousand, three hundred thirty".