1121213184623 has 12 divisors (see below), whose sum is σ = 1304296364520. Its totient is φ = 961019266032.

The previous prime is 1121213184607. The next prime is 1121213184629. The reversal of 1121213184623 is 3264813121211.

It is not a de Polignac number, because 1121213184623 - 2⁴ = 1121213184607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121213184629) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2338040 + ... + 2776482.

It is an arithmetic number, because the mean of its divisors is an integer number (108691363710).

Almost surely, 2^{1121213184623} is an apocalyptic number.

1121213184623 is a deficient number, since it is larger than the sum of its proper divisors (183083179897).

1121213184623 is an equidigital number, since it uses as much as digits as its factorization.

1121213184623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490646 (or 490639 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The spelling of 1121213184623 in words is "one trillion, one hundred twenty-one billion, two hundred thirteen million, one hundred eighty-four thousand, six hundred twenty-three".