2400121423 has 4 divisors (see below), whose sum is σ = 2742995920. Its totient is φ = 2057246928.

The previous prime is 2400121397. The next prime is 2400121447. The reversal of 2400121423 is 3241210042.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2400121423 - 2⁵ = 2400121391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2400121423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400124423) 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, 171437238 + ... + 171437251.

It is an arithmetic number, because the mean of its divisors is an integer number (685748980).

Almost surely, 2^2400121423 is an apocalyptic number.

2400121423 is a deficient number, since it is larger than the sum of its proper divisors (342874497).

2400121423 is an equidigital number, since it uses as much as digits as its factorization.

2400121423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342874496.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2400121423 is about 48991.0341082937. The cubic root of 2400121423 is about 1338.8884788272. Note that the first 3 decimals are identical.

Adding to 2400121423 its reverse (3241210042), we get a palindrome (5641331465).

The spelling of 2400121423 in words is "two billion, four hundred million, one hundred twenty-one thousand, four hundred twenty-three".