1121342656668 has 48 divisors (see below), whose sum is σ = 2819899160736. Its totient is φ = 344763244800.

The previous prime is 1121342656661. The next prime is 1121342656711. The reversal of 1121342656668 is 8666562431211.

It is a self number, because there is not a number n which added to its sum of digits gives 1121342656668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121342656661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2559571 + ... + 2965482.

It is an arithmetic number, because the mean of its divisors is an integer number (58747899182).

Almost surely, 2^{1121342656668} is an apocalyptic number.

It is an amenable number.

1121342656668 is an abundant number, since it is smaller than the sum of its proper divisors (1698556504068).

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

1121342656668 is a wasteful number, since it uses less digits than its factorization.

1121342656668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5526374 (or 5526372 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The spelling of 1121342656668 in words is "one trillion, one hundred twenty-one billion, three hundred forty-two million, six hundred fifty-six thousand, six hundred sixty-eight".