34121123421 has 32 divisors (see below), whose sum is σ = 57153862656. Its totient is φ = 17589936000.

The previous prime is 34121123411. The next prime is 34121123441. The reversal of 34121123421 is 12432112143.

It is not a de Polignac number, because 34121123421 - 2¹⁸ = 34120861277 is a prime.

It is a super-2 number, since 2×34121123421² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 34121123391 and 34121123400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34121123411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 533520 + ... + 594041.

It is an arithmetic number, because the mean of its divisors is an integer number (1786058208).

Almost surely, 2^34121123421 is an apocalyptic number.

It is an amenable number.

34121123421 is a deficient number, since it is larger than the sum of its proper divisors (23032739235).

34121123421 is a wasteful number, since it uses less digits than its factorization.

34121123421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127713.

The product of its digits is 1152, while the sum is 24.

Adding to 34121123421 its reverse (12432112143), we get a palindrome (46553235564).

The spelling of 34121123421 in words is "thirty-four billion, one hundred twenty-one million, one hundred twenty-three thousand, four hundred twenty-one".