1123200431132 has 48 divisors (see below), whose sum is σ = 2313619160832. Its totient is φ = 472167152640.

The previous prime is 1123200431077. The next prime is 1123200431161. The reversal of 1123200431132 is 2311340023211.

It is a super-2 number, since 2×1123200431132² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123200431098 and 1123200431107.

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, 20465963 + ... + 20520770.

It is an arithmetic number, because the mean of its divisors is an integer number (48200399184).

Almost surely, 2^{1123200431132} is an apocalyptic number.

It is an amenable number.

1123200431132 is an abundant number, since it is smaller than the sum of its proper divisors (1190418729700).

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

1123200431132 is a wasteful number, since it uses less digits than its factorization.

1123200431132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40986798 (or 40986796 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1123200431132 its reverse (2311340023211), we get a palindrome (3434540454343).

The spelling of 1123200431132 in words is "one trillion, one hundred twenty-three billion, two hundred million, four hundred thirty-one thousand, one hundred thirty-two".