1121109805471 has 4 divisors (see below), whose sum is σ = 1122043286944. Its totient is φ = 1120176324000.

The previous prime is 1121109805469. The next prime is 1121109805493. The reversal of 1121109805471 is 1745089011211.

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 1121109805471 - 2¹ = 1121109805469 is a prime.

It is a super-3 number, since 3×1121109805471³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121109805411) 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, 466738935 + ... + 466741336.

It is an arithmetic number, because the mean of its divisors is an integer number (280510821736).

Almost surely, 2^{1121109805471} is an apocalyptic number.

1121109805471 is a deficient number, since it is larger than the sum of its proper divisors (933481473).

1121109805471 is an equidigital number, since it uses as much as digits as its factorization.

1121109805471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933481472.

The product of its (nonzero) digits is 20160, while the sum is 40.

The spelling of 1121109805471 in words is "one trillion, one hundred twenty-one billion, one hundred nine million, eight hundred five thousand, four hundred seventy-one".