1123441400421 has 48 divisors (see below), whose sum is σ = 1712225736000. Its totient is φ = 707853323520.

The previous prime is 1123441400407. The next prime is 1123441400429. The reversal of 1123441400421 is 1240041443211.

1123441400421 is a `hidden beast` number, since 1 + 1 + 234 + 4 + 1 + 4 + 0 + 0 + 421 = 666.

It is not a de Polignac number, because 1123441400421 - 2¹⁹ = 1123440876133 is a prime.

It is a super-3 number, since 3×1123441400421³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123441400429) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 234585495 + ... + 234590283.

It is an arithmetic number, because the mean of its divisors is an integer number (35671369500).

Almost surely, 2^{1123441400421} is an apocalyptic number.

It is an amenable number.

1123441400421 is a deficient number, since it is larger than the sum of its proper divisors (588784335579).

1123441400421 is a wasteful number, since it uses less digits than its factorization.

1123441400421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7794 (or 7791 counting only the distinct ones).

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

Adding to 1123441400421 its reverse (1240041443211), we get a palindrome (2363482843632).

The spelling of 1123441400421 in words is "one trillion, one hundred twenty-three billion, four hundred forty-one million, four hundred thousand, four hundred twenty-one".