1121644143371 has 4 divisors (see below), whose sum is σ = 1157826212544. Its totient is φ = 1085462074200.

The previous prime is 1121644143359. The next prime is 1121644143409. The reversal of 1121644143371 is 1733414461211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1121644143371 - 2¹⁴ = 1121644126987 is a prime.

It is a super-3 number, since 3×1121644143371³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121644143311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18091034540 + ... + 18091034601.

It is an arithmetic number, because the mean of its divisors is an integer number (289456553136).

Almost surely, 2^{1121644143371} is an apocalyptic number.

1121644143371 is a deficient number, since it is larger than the sum of its proper divisors (36182069173).

1121644143371 is an equidigital number, since it uses as much as digits as its factorization.

1121644143371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36182069172.

The product of its digits is 48384, while the sum is 38.

The spelling of 1121644143371 in words is "one trillion, one hundred twenty-one billion, six hundred forty-four million, one hundred forty-three thousand, three hundred seventy-one".