1121203332342 has 64 divisors (see below), whose sum is σ = 2563932139200. Its totient is φ = 362918776320.

The previous prime is 1121203332329. The next prime is 1121203332367. The reversal of 1121203332342 is 2432333021211.

1121203332342 is a `hidden beast` number, since 1 + 121 + 203 + 332 + 3 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 31 ways as a sum of consecutive naturals, for example, 465742 + ... + 1568222.

It is an arithmetic number, because the mean of its divisors is an integer number (40061439675).

Almost surely, 2^{1121203332342} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121203332342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1281966069600).

1121203332342 is an abundant number, since it is smaller than the sum of its proper divisors (1442728806858).

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

1121203332342 is a wasteful number, since it uses less digits than its factorization.

1121203332342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103038 (or 1103032 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 1121203332342 its reverse (2432333021211), we get a palindrome (3553536353553).

The spelling of 1121203332342 in words is "one trillion, one hundred twenty-one billion, two hundred three million, three hundred thirty-two thousand, three hundred forty-two".