4342121431 has 4 divisors (see below), whose sum is σ = 4342412592. Its totient is φ = 4341830272.

The previous prime is 4342121387. The next prime is 4342121437. The reversal of 4342121431 is 1341212434.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4342121431 is a prime.

It is a super-2 number, since 2×4342121431² = 37708037043098975522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4342121396 and 4342121405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4342121437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121930 + ... + 153463.

It is an arithmetic number, because the mean of its divisors is an integer number (1085603148).

Almost surely, 2^4342121431 is an apocalyptic number.

4342121431 is a deficient number, since it is larger than the sum of its proper divisors (291161).

4342121431 is a wasteful number, since it uses less digits than its factorization.

4342121431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291160.

The product of its digits is 2304, while the sum is 25.

The square root of 4342121431 is about 65894.7754454023. The cubic root of 4342121431 is about 1631.4257828587.

Adding to 4342121431 its reverse (1341212434), we get a palindrome (5683333865).

The spelling of 4342121431 in words is "four billion, three hundred forty-two million, one hundred twenty-one thousand, four hundred thirty-one".