45021123045 has 48 divisors (see below), whose sum is σ = 80305834752. Its totient is φ = 23320851840.

The previous prime is 45021123031. The next prime is 45021123101. The reversal of 45021123045 is 54032112054.

45021123045 is a `hidden beast` number, since 4 + 502 + 112 + 3 + 0 + 45 = 666.

It is not a de Polignac number, because 45021123045 - 2¹¹ = 45021120997 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 (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 195819 + ... + 358311.

It is an arithmetic number, because the mean of its divisors is an integer number (1673038224).

Almost surely, 2^45021123045 is an apocalyptic number.

45021123045 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45021123045 is a deficient number, since it is larger than the sum of its proper divisors (35284711707).

45021123045 is a wasteful number, since it uses less digits than its factorization.

45021123045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162682 (or 162679 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 45021123045 its reverse (54032112054), we get a palindrome (99053235099).

The spelling of 45021123045 in words is "forty-five billion, twenty-one million, one hundred twenty-three thousand, forty-five".