1121431698832 has 10 divisors (see below), whose sum is σ = 2172773916518. Its totient is φ = 560715849408.

The previous prime is 1121431698809. The next prime is 1121431698833. The reversal of 1121431698832 is 2388961341211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1106232754176 + 15198944656 = 1051776^2 + 123284^2 .

It is not an unprimeable number, because it can be changed into a prime (1121431698833) by changing a digit.

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 as a sum of consecutive naturals, namely, 35044740573 + ... + 35044740604.

Almost surely, 2^{1121431698832} is an apocalyptic number.

It is an amenable number.

1121431698832 is a deficient number, since it is larger than the sum of its proper divisors (1051342217686).

1121431698832 is an equidigital number, since it uses as much as digits as its factorization.

1121431698832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70089481185 (or 70089481179 counting only the distinct ones).

The product of its digits is 497664, while the sum is 49.

The spelling of 1121431698832 in words is "one trillion, one hundred twenty-one billion, four hundred thirty-one million, six hundred ninety-eight thousand, eight hundred thirty-two".