13123301323220 has 48 divisors (see below), whose sum is σ = 30330346027968. Its totient is φ = 4729878504960.

The previous prime is 13123301323213. The next prime is 13123301323241. The reversal of 13123301323220 is 2232310332131.

It is a super-2 number, since 2×13123301323220² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13123301323220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263919254 + ... + 263968973.

It is an arithmetic number, because the mean of its divisors is an integer number (631882208916).

Almost surely, 2^{13123301323220} is an apocalyptic number.

13123301323220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13123301323220 is an abundant number, since it is smaller than the sum of its proper divisors (17207044704748).

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

13123301323220 is a wasteful number, since it uses less digits than its factorization.

13123301323220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527888360 (or 527888358 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 13123301323220 its reverse (2232310332131), we get a palindrome (15355611655351).

The spelling of 13123301323220 in words is "thirteen trillion, one hundred twenty-three billion, three hundred one million, three hundred twenty-three thousand, two hundred twenty".