4102523123445 has 48 divisors (see below), whose sum is σ = 7726766860800. Its totient is φ = 2005987524480.

The previous prime is 4102523123411. The next prime is 4102523123449. The reversal of 4102523123445 is 5443213252014.

It is a happy number.

4102523123445 is a `hidden beast` number, since 4 + 1 + 0 + 2 + 523 + 123 + 4 + 4 + 5 = 666.

It is not a de Polignac number, because 4102523123445 - 2⁹ = 4102523122933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4102523123449) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77364990 + ... + 77417999.

It is an arithmetic number, because the mean of its divisors is an integer number (160974309600).

Almost surely, 2^{4102523123445} is an apocalyptic number.

4102523123445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4102523123445 is a deficient number, since it is larger than the sum of its proper divisors (3624243737355).

4102523123445 is a wasteful number, since it uses less digits than its factorization.

4102523123445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154783050 (or 154783047 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 4102523123445 its reverse (5443213252014), we get a palindrome (9545736375459).

The spelling of 4102523123445 in words is "four trillion, one hundred two billion, five hundred twenty-three million, one hundred twenty-three thousand, four hundred forty-five".