3430423121 has 4 divisors (see below), whose sum is σ = 3430721700. Its totient is φ = 3430124544.

The previous prime is 3430423111. The next prime is 3430423147. The reversal of 3430423121 is 1213240343.

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

It can be written as a sum of positive squares in 2 ways, for example, as 94090000 + 3336333121 = 9700^2 + 57761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3430423121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3430423111) 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, 131336 + ... + 155273.

It is an arithmetic number, because the mean of its divisors is an integer number (857680425).

Almost surely, 2^3430423121 is an apocalyptic number.

It is an amenable number.

3430423121 is a deficient number, since it is larger than the sum of its proper divisors (298579).

3430423121 is a wasteful number, since it uses less digits than its factorization.

3430423121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298578.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 3430423121 is about 58569.8140768775. The cubic root of 3430423121 is about 1508.1662931637.

Adding to 3430423121 its reverse (1213240343), we get a palindrome (4643663464).

The spelling of 3430423121 in words is "three billion, four hundred thirty million, four hundred twenty-three thousand, one hundred twenty-one".