1121991029353 has 4 divisors (see below), whose sum is σ = 1127865328128. Its totient is φ = 1116116730580.

The previous prime is 1121991029329. The next prime is 1121991029359. The reversal of 1121991029353 is 3539201991211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121991029353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121991029359) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2937149101 + ... + 2937149482.

It is an arithmetic number, because the mean of its divisors is an integer number (281966332032).

Almost surely, 2^{1121991029353} is an apocalyptic number.

It is an amenable number.

1121991029353 is a deficient number, since it is larger than the sum of its proper divisors (5874298775).

1121991029353 is an equidigital number, since it uses as much as digits as its factorization.

1121991029353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5874298774.

The product of its (nonzero) digits is 131220, while the sum is 46.

The spelling of 1121991029353 in words is "one trillion, one hundred twenty-one billion, nine hundred ninety-one million, twenty-nine thousand, three hundred fifty-three".