8123203045 has 16 divisors (see below), whose sum is σ = 9892776960. Its totient is φ = 6402299904.

The previous prime is 8123202979. The next prime is 8123203129. The reversal of 8123203045 is 5403023218.

It is a cyclic number.

It is not a de Polignac number, because 8123203045 - 2⁷ = 8123202917 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160677 + ... + 205093.

It is an arithmetic number, because the mean of its divisors is an integer number (618298560).

Almost surely, 2^8123203045 is an apocalyptic number.

It is an amenable number.

8123203045 is a deficient number, since it is larger than the sum of its proper divisors (1769573915).

8123203045 is a wasteful number, since it uses less digits than its factorization.

8123203045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44964.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 8123203045 is about 90128.8136225037. The cubic root of 8123203045 is about 2010.2146619415.

The spelling of 8123203045 in words is "eight billion, one hundred twenty-three million, two hundred three thousand, forty-five".