45123245121020 has 48 divisors (see below), whose sum is σ = 103374902375136. Its totient is φ = 16408190880000.

The previous prime is 45123245120977. The next prime is 45123245121023. The reversal of 45123245121020 is 2012154232154.

It is a super-2 number, since 2×45123245121020² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45123245121023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12453350 + ... + 15663090.

It is an arithmetic number, because the mean of its divisors is an integer number (2153643799482).

Almost surely, 2^{45123245121020} is an apocalyptic number.

It is an amenable number.

45123245121020 is an abundant number, since it is smaller than the sum of its proper divisors (58251657254116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45123245121020 is a wasteful number, since it uses less digits than its factorization.

45123245121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3273662 (or 3273660 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 45123245121020 its reverse (2012154232154), we get a palindrome (47135399353174).

The spelling of 45123245121020 in words is "forty-five trillion, one hundred twenty-three billion, two hundred forty-five million, one hundred twenty-one thousand, twenty".