34123023421 has 8 divisors (see below), whose sum is σ = 35706285824. Its totient is φ = 32569918560.

The previous prime is 34123023413. The next prime is 34123023437. The reversal of 34123023421 is 12432032143.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 34123023421 - 2³ = 34123023413 is a prime.

It is a super-2 number, since 2×34123023421² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34123023461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7537071 + ... + 7541596.

It is an arithmetic number, because the mean of its divisors is an integer number (4463285728).

Almost surely, 2^34123023421 is an apocalyptic number.

34123023421 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

34123023421 is a deficient number, since it is larger than the sum of its proper divisors (1583262403).

34123023421 is a wasteful number, since it uses less digits than its factorization.

34123023421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15078771.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 34123023421 its reverse (12432032143), we get a palindrome (46555055564).

The spelling of 34123023421 in words is "thirty-four billion, one hundred twenty-three million, twenty-three thousand, four hundred twenty-one".