45021243023 has 4 divisors (see below), whose sum is σ = 45021921360. Its totient is φ = 45020564688.

The previous prime is 45021243013. The next prime is 45021243031. The reversal of 45021243023 is 32034212054.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45021243023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45021242983 and 45021243001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45021243013) 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, 227318 + ... + 376451.

It is an arithmetic number, because the mean of its divisors is an integer number (11255480340).

Almost surely, 2^45021243023 is an apocalyptic number.

45021243023 is a deficient number, since it is larger than the sum of its proper divisors (678337).

45021243023 is an equidigital number, since it uses as much as digits as its factorization.

45021243023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678336.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 45021243023 its reverse (32034212054), we get a palindrome (77055455077).

The spelling of 45021243023 in words is "forty-five billion, twenty-one million, two hundred forty-three thousand, twenty-three".