4240121431 has 16 divisors (see below), whose sum is σ = 5220633600. Its totient is φ = 3353521248.

The previous prime is 4240121401. The next prime is 4240121443. The reversal of 4240121431 is 1341210424.

It is a happy number.

It is not a de Polignac number, because 4240121431 - 2⁵ = 4240121399 is a prime.

It is a super-2 number, since 2×4240121431² = 35957259499250975522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4240121401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276360 + ... + 291298.

It is an arithmetic number, because the mean of its divisors is an integer number (326289600).

Almost surely, 2^4240121431 is an apocalyptic number.

4240121431 is a deficient number, since it is larger than the sum of its proper divisors (980512169).

4240121431 is a wasteful number, since it uses less digits than its factorization.

4240121431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18078.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 4240121431 is about 65116.2148086020. The cubic root of 4240121431 is about 1618.5499180440.

Adding to 4240121431 its reverse (1341210424), we get a palindrome (5581331855).

The spelling of 4240121431 in words is "four billion, two hundred forty million, one hundred twenty-one thousand, four hundred thirty-one".