1121440212423 has 48 divisors (see below), whose sum is σ = 1790127664416. Its totient is φ = 673533818880.

The previous prime is 1121440212419. The next prime is 1121440212427. The reversal of 1121440212423 is 3242120441211.

1121440212423 is a `hidden beast` number, since 1 + 1 + 2 + 1 + 440 + 212 + 4 + 2 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (1121440212419) and next prime (1121440212427).

It is not a de Polignac number, because 1121440212423 - 2² = 1121440212419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121440212427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1354065 + ... + 2019002.

It is an arithmetic number, because the mean of its divisors is an integer number (37294326342).

Almost surely, 2^{1121440212423} is an apocalyptic number.

1121440212423 is a deficient number, since it is larger than the sum of its proper divisors (668687451993).

1121440212423 is a wasteful number, since it uses less digits than its factorization.

1121440212423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3373184 (or 3373181 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 1121440212423 its reverse (3242120441211), we get a palindrome (4363560653634).

The spelling of 1121440212423 in words is "one trillion, one hundred twenty-one billion, four hundred forty million, two hundred twelve thousand, four hundred twenty-three".