1121356145541 has 8 divisors (see below), whose sum is σ = 1495146418560. Its totient is φ = 747568318112.

The previous prime is 1121356145447. The next prime is 1121356145551. The reversal of 1121356145541 is 1455416531211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121356145541 - 2⁹ = 1121356145029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1121356145541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121356145551) 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, 1512961 + ... + 2128793.

It is an arithmetic number, because the mean of its divisors is an integer number (186893302320).

Almost surely, 2^{1121356145541} is an apocalyptic number.

It is an amenable number.

1121356145541 is a deficient number, since it is larger than the sum of its proper divisors (373790273019).

1121356145541 is an equidigital number, since it uses as much as digits as its factorization.

1121356145541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222795.

The product of its digits is 72000, while the sum is 39.

The spelling of 1121356145541 in words is "one trillion, one hundred twenty-one billion, three hundred fifty-six million, one hundred forty-five thousand, five hundred forty-one".