45450042123 has 8 divisors (see below), whose sum is σ = 61627176000. Its totient is φ = 29786468168.

The previous prime is 45450042119. The next prime is 45450042161. The reversal of 45450042123 is 32124005454.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45450042123 - 2² = 45450042119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45450042163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128389773 + ... + 128390126.

It is an arithmetic number, because the mean of its divisors is an integer number (7703397000).

Almost surely, 2^45450042123 is an apocalyptic number.

45450042123 is a deficient number, since it is larger than the sum of its proper divisors (16177133877).

45450042123 is a wasteful number, since it uses less digits than its factorization.

45450042123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256779961.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 45450042123 its reverse (32124005454), we get a palindrome (77574047577).

The spelling of 45450042123 in words is "forty-five billion, four hundred fifty million, forty-two thousand, one hundred twenty-three".