4355212123 has 4 divisors (see below), whose sum is σ = 4357301040. Its totient is φ = 4353123208.

The previous prime is 4355212111. The next prime is 4355212157. The reversal of 4355212123 is 3212125534.

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

It is a cyclic number.

It is not a de Polignac number, because 4355212123 - 2¹⁷ = 4355081051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4355212091 and 4355212100.

It is not an unprimeable number, because it can be changed into a prime (4355212223) 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, 1041328 + ... + 1045501.

It is an arithmetic number, because the mean of its divisors is an integer number (1089325260).

Almost surely, 2^4355212123 is an apocalyptic number.

4355212123 is a deficient number, since it is larger than the sum of its proper divisors (2088917).

4355212123 is a wasteful number, since it uses less digits than its factorization.

4355212123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088916.

The product of its digits is 7200, while the sum is 28.

The square root of 4355212123 is about 65994.0309649289. The cubic root of 4355212123 is about 1633.0636202385.

Adding to 4355212123 its reverse (3212125534), we get a palindrome (7567337657).

The spelling of 4355212123 in words is "four billion, three hundred fifty-five million, two hundred twelve thousand, one hundred twenty-three".