3431134121 has 4 divisors (see below), whose sum is σ = 3448912212. Its totient is φ = 3413356032.

The previous prime is 3431134117. The next prime is 3431134127. The reversal of 3431134121 is 1214311343.

3431134121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 754106521 + 2677027600 = 27461^2 + 51740^2 .

It is a cyclic number.

It is not a de Polignac number, because 3431134121 - 2² = 3431134117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3431134127) 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, 8888756 + ... + 8889141.

It is an arithmetic number, because the mean of its divisors is an integer number (862228053).

Almost surely, 2^3431134121 is an apocalyptic number.

It is an amenable number.

3431134121 is a deficient number, since it is larger than the sum of its proper divisors (17778091).

3431134121 is a wasteful number, since it uses less digits than its factorization.

3431134121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17778090.

The product of its digits is 864, while the sum is 23.

The square root of 3431134121 is about 58575.8834419081. The cubic root of 3431134121 is about 1508.2704816872.

Adding to 3431134121 its reverse (1214311343), we get a palindrome (4645445464).

The spelling of 3431134121 in words is "three billion, four hundred thirty-one million, one hundred thirty-four thousand, one hundred twenty-one".