123013773045 has 48 divisors (see below), whose sum is σ = 222557362560. Its totient is φ = 62737116288.

The previous prime is 123013773041. The next prime is 123013773101. The reversal of 123013773045 is 540377310321.

123013773045 is a `hidden beast` number, since 12 + 301 + 37 + 7 + 304 + 5 = 666.

It is not a de Polignac number, because 123013773045 - 2² = 123013773041 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123013773041) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 4144879 + ... + 4174451.

It is an arithmetic number, because the mean of its divisors is an integer number (4636611720).

Almost surely, 2^123013773045 is an apocalyptic number.

123013773045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123013773045 is a deficient number, since it is larger than the sum of its proper divisors (99543589515).

123013773045 is a wasteful number, since it uses less digits than its factorization.

123013773045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33626 (or 33623 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The spelling of 123013773045 in words is "one hundred twenty-three billion, thirteen million, seven hundred seventy-three thousand, forty-five".