1131242330432 has 56 divisors (see below), whose sum is σ = 2434828795560. Its totient is φ = 519365181440.

The previous prime is 1131242330431. The next prime is 1131242330453. The reversal of 1131242330432 is 2340332421311.

It can be written as a sum of positive squares in 4 ways, for example, as 210225918016 + 921016412416 = 458504^2 + 959696^2 .

It is a super-2 number, since 2×1131242330432² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1131242330395 and 1131242330404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131242330431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12635207 + ... + 12724422.

It is an arithmetic number, because the mean of its divisors is an integer number (43479085635).

Almost surely, 2^{1131242330432} is an apocalyptic number.

It is an amenable number.

1131242330432 is an abundant number, since it is smaller than the sum of its proper divisors (1303586465128).

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

1131242330432 is a wasteful number, since it uses less digits than its factorization.

1131242330432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25359699 (or 25359689 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 1131242330432 its reverse (2340332421311), we get a palindrome (3471574751743).

The spelling of 1131242330432 in words is "one trillion, one hundred thirty-one billion, two hundred forty-two million, three hundred thirty thousand, four hundred thirty-two".