34144542121 has 4 divisors (see below), whose sum is σ = 34144926544. Its totient is φ = 34144157700.

The previous prime is 34144542083. The next prime is 34144542137. The reversal of 34144542121 is 12124544143.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12124544143 = 17 ⋅713208479.

It is a cyclic number.

It is not a de Polignac number, because 34144542121 - 2¹⁹ = 34144017833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34144542161) 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, 16726 + ... + 261856.

It is an arithmetic number, because the mean of its divisors is an integer number (8536231636).

Almost surely, 2^34144542121 is an apocalyptic number.

It is an amenable number.

34144542121 is a deficient number, since it is larger than the sum of its proper divisors (384423).

34144542121 is a wasteful number, since it uses less digits than its factorization.

34144542121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384422.

The product of its digits is 15360, while the sum is 31.

The spelling of 34144542121 in words is "thirty-four billion, one hundred forty-four million, five hundred forty-two thousand, one hundred twenty-one".