2400021123 has 8 divisors (see below), whose sum is σ = 3203739648. Its totient is φ = 1598158344.

The previous prime is 2400021103. The next prime is 2400021131. The reversal of 2400021123 is 3211200042.

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

It is not a de Polignac number, because 2400021123 - 2⁸ = 2400020867 is a prime.

It is a super-4 number, since 4×2400021123⁴ (a number of 39 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2400021103) 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, 460915 + ... + 466092.

It is an arithmetic number, because the mean of its divisors is an integer number (400467456).

Almost surely, 2^2400021123 is an apocalyptic number.

2400021123 is a deficient number, since it is larger than the sum of its proper divisors (803718525).

2400021123 is an equidigital number, since it uses as much as digits as its factorization.

2400021123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927873.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2400021123 is about 48990.0104409052. The cubic root of 2400021123 is about 1338.8698280507.

Adding to 2400021123 its reverse (3211200042), we get a palindrome (5611221165).

The spelling of 2400021123 in words is "two billion, four hundred million, twenty-one thousand, one hundred twenty-three".