1121419393 has 4 divisors (see below), whose sum is σ = 1121840980. Its totient is φ = 1120997808.

The previous prime is 1121419381. The next prime is 1121419423. The reversal of 1121419393 is 3939141211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3939141211 = 859 ⋅4585729.

It can be written as a sum of positive squares in 2 ways, for example, as 218537089 + 902882304 = 14783^2 + 30048^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121419393 - 2¹³ = 1121411201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121419333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206778 + ... + 212131.

It is an arithmetic number, because the mean of its divisors is an integer number (280460245).

Almost surely, 2^1121419393 is an apocalyptic number.

It is an amenable number.

1121419393 is a deficient number, since it is larger than the sum of its proper divisors (421587).

1121419393 is an equidigital number, since it uses as much as digits as its factorization.

1121419393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421586.

The product of its digits is 5832, while the sum is 34.

The square root of 1121419393 is about 33487.6005858885. The cubic root of 1121419393 is about 1038.9373369488.

The spelling of 1121419393 in words is "one billion, one hundred twenty-one million, four hundred nineteen thousand, three hundred ninety-three".