3123112131132 has 72 divisors (see below), whose sum is σ = 8478964112976. Its totient is φ = 892112965632.

The previous prime is 3123112131109. The next prime is 3123112131137. The reversal of 3123112131132 is 2311312113213.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123112131137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1964028 + ... + 3178620.

It is an arithmetic number, because the mean of its divisors is an integer number (117763390458).

Almost surely, 2^{3123112131132} is an apocalyptic number.

It is an amenable number.

3123112131132 is an abundant number, since it is smaller than the sum of its proper divisors (5355851981844).

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

3123112131132 is a wasteful number, since it uses less digits than its factorization.

3123112131132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218987 (or 1218978 counting only the distinct ones).

The product of its digits is 648, while the sum is 24.

Adding to 3123112131132 its reverse (2311312113213), we get a palindrome (5434424244345).

The spelling of 3123112131132 in words is "three trillion, one hundred twenty-three billion, one hundred twelve million, one hundred thirty-one thousand, one hundred thirty-two".