1123842041421 has 8 divisors (see below), whose sum is σ = 1634679333024. Its totient is φ = 681116388720.

The previous prime is 1123842041417. The next prime is 1123842041429. The reversal of 1123842041421 is 1241402483211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1123842041421 - 2² = 1123842041417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 34055819437 = 1123842041421 / (1 + 1 + 2 + 3 + 8 + 4 + 2 + 0 + 4 + 1 + 4 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123842041429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17027909686 + ... + 17027909751.

It is an arithmetic number, because the mean of its divisors is an integer number (204334916628).

Almost surely, 2^{1123842041421} is an apocalyptic number.

1123842041421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1123842041421 is a deficient number, since it is larger than the sum of its proper divisors (510837291603).

1123842041421 is a wasteful number, since it uses less digits than its factorization.

1123842041421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34055819451.

The product of its (nonzero) digits is 12288, while the sum is 33.

The spelling of 1123842041421 in words is "one trillion, one hundred twenty-three billion, eight hundred forty-two million, forty-one thousand, four hundred twenty-one".