2451421121 has 8 divisors (see below), whose sum is σ = 2558957184. Its totient is φ = 2343964480.

The previous prime is 2451421117. The next prime is 2451421123. The reversal of 2451421121 is 1211241542.

2451421121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2451421121 - 2² = 2451421117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (2451421123) 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, 48236 + ... + 85026.

It is an arithmetic number, because the mean of its divisors is an integer number (319869648).

Almost surely, 2^2451421121 is an apocalyptic number.

It is an amenable number.

2451421121 is a deficient number, since it is larger than the sum of its proper divisors (107536063).

2451421121 is a wasteful number, since it uses less digits than its factorization.

2451421121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39711.

The product of its digits is 640, while the sum is 23.

The square root of 2451421121 is about 49511.8280918812. The cubic root of 2451421121 is about 1348.3603543181.

Adding to 2451421121 its reverse (1211241542), we get a palindrome (3662662663).

It can be divided in two parts, 2451421 and 121, that added together give a palindrome (2451542).

The spelling of 2451421121 in words is "two billion, four hundred fifty-one million, four hundred twenty-one thousand, one hundred twenty-one".