4123512335145 has 32 divisors (see below), whose sum is σ = 7541242610688. Its totient is φ = 1884757768128.

The previous prime is 4123512335083. The next prime is 4123512335147. The reversal of 4123512335145 is 5415332153214.

It is not a de Polignac number, because 4123512335145 - 2²¹ = 4123510237993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4123512335147) 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, 2159359 + ... + 3593028.

It is an arithmetic number, because the mean of its divisors is an integer number (235663831584).

Almost surely, 2^{4123512335145} is an apocalyptic number.

It is an amenable number.

4123512335145 is a deficient number, since it is larger than the sum of its proper divisors (3417730275543).

4123512335145 is a wasteful number, since it uses less digits than its factorization.

4123512335145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5759229.

The product of its digits is 216000, while the sum is 39.

Adding to 4123512335145 its reverse (5415332153214), we get a palindrome (9538844488359).

The spelling of 4123512335145 in words is "four trillion, one hundred twenty-three billion, five hundred twelve million, three hundred thirty-five thousand, one hundred forty-five".