20131112132 has 12 divisors (see below), whose sum is σ = 35232457260. Its totient is φ = 10064695776.

The previous prime is 20131112117. The next prime is 20131112147. The reversal of 20131112132 is 23121113102.

It is an interprime number because it is at equal distance from previous prime (20131112117) and next prime (20131112147).

It can be written as a sum of positive squares in 2 ways, for example, as 7193414596 + 12937697536 = 84814^2 + 113744^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20131112132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160907 + ... + 257202.

It is an arithmetic number, because the mean of its divisors is an integer number (2936038105).

Almost surely, 2^20131112132 is an apocalyptic number.

It is an amenable number.

20131112132 is a deficient number, since it is larger than the sum of its proper divisors (15101345128).

20131112132 is a wasteful number, since it uses less digits than its factorization.

20131112132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430150 (or 430148 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20131112132 its reverse (23121113102), we get a palindrome (43252225234).

The spelling of 20131112132 in words is "twenty billion, one hundred thirty-one million, one hundred twelve thousand, one hundred thirty-two".