13123255441220 has 48 divisors (see below), whose sum is σ = 28001990495808. Its totient is φ = 5165395824000.

The previous prime is 13123255441139. The next prime is 13123255441249. The reversal of 13123255441220 is 2214455232131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15331499 + ... + 16164818.

It is an arithmetic number, because the mean of its divisors is an integer number (583374801996).

Almost surely, 2^{13123255441220} is an apocalyptic number.

13123255441220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13123255441220 is an abundant number, since it is smaller than the sum of its proper divisors (14878735054588).

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

13123255441220 is a wasteful number, since it uses less digits than its factorization.

13123255441220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31496660 (or 31496658 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 13123255441220 in words is "thirteen trillion, one hundred twenty-three billion, two hundred fifty-five million, four hundred forty-one thousand, two hundred twenty".