1124001421 has 4 divisors (see below), whose sum is σ = 1172871072. Its totient is φ = 1075131772.

The previous prime is 1124001419. The next prime is 1124001451. The reversal of 1124001421 is 1241004211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1241004211 = 523 ⋅2372857.

It is a cyclic number.

It is not a de Polignac number, because 1124001421 - 2¹ = 1124001419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1124001395 and 1124001404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1124001451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24434791 + ... + 24434836.

It is an arithmetic number, because the mean of its divisors is an integer number (293217768).

Almost surely, 2^1124001421 is an apocalyptic number.

It is an amenable number.

1124001421 is a deficient number, since it is larger than the sum of its proper divisors (48869651).

1124001421 is an equidigital number, since it uses as much as digits as its factorization.

1124001421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48869650.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1124001421 is about 33526.1304209120. The cubic root of 1124001421 is about 1039.7340977633.

Adding to 1124001421 its reverse (1241004211), we get a palindrome (2365005632).

The spelling of 1124001421 in words is "one billion, one hundred twenty-four million, one thousand, four hundred twenty-one".