4123145213 has 4 divisors (see below), whose sum is σ = 4497976608. Its totient is φ = 3748313820.

The previous prime is 4123145207. The next prime is 4123145233. The reversal of 4123145213 is 3125413214.

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.

It is a cyclic number.

It is not a de Polignac number, because 4123145213 - 2¹⁰ = 4123144189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4123145233) 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, 187415681 + ... + 187415702.

It is an arithmetic number, because the mean of its divisors is an integer number (1124494152).

Almost surely, 2^4123145213 is an apocalyptic number.

It is an amenable number.

4123145213 is a deficient number, since it is larger than the sum of its proper divisors (374831395).

4123145213 is a wasteful number, since it uses less digits than its factorization.

4123145213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374831394.

The product of its digits is 2880, while the sum is 26.

The square root of 4123145213 is about 64211.7217725860. The cubic root of 4123145213 is about 1603.5267534872.

Adding to 4123145213 its reverse (3125413214), we get a palindrome (7248558427).

The spelling of 4123145213 in words is "four billion, one hundred twenty-three million, one hundred forty-five thousand, two hundred thirteen".