2131123611232 has 96 divisors (see below), whose sum is σ = 5248794587904. Its totient is φ = 827473804800.

The previous prime is 2131123611209. The next prime is 2131123611269. The reversal of 2131123611232 is 2321163211312.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 2131123611232.

It is a congruent number.

It is an unprimeable number.

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, 753994 + ... + 2197897.

It is an arithmetic number, because the mean of its divisors is an integer number (54674943624).

Almost surely, 2^{2131123611232} is an apocalyptic number.

2131123611232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2131123611232 is an abundant number, since it is smaller than the sum of its proper divisors (3117670976672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131123611232 is a wasteful number, since it uses less digits than its factorization.

2131123611232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2952212 (or 2952204 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

Adding to 2131123611232 its reverse (2321163211312), we get a palindrome (4452286822544).

The spelling of 2131123611232 in words is "two trillion, one hundred thirty-one billion, one hundred twenty-three million, six hundred eleven thousand, two hundred thirty-two".