13011100323220 has 12 divisors (see below), whose sum is σ = 27323310678804. Its totient is φ = 5204440129280.

The previous prime is 13011100323217. The next prime is 13011100323223. The reversal of 13011100323220 is 2232300111031.

It is an interprime number because it is at equal distance from previous prime (13011100323217) and next prime (13011100323223).

It can be written as a sum of positive squares in 2 ways, for example, as 8078134946436 + 4932965376784 = 2842206^2 + 2221028^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13011100323223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325277508061 + ... + 325277508100.

It is an arithmetic number, because the mean of its divisors is an integer number (2276942556567).

Almost surely, 2^{13011100323220} is an apocalyptic number.

13011100323220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13011100323220 is an abundant number, since it is smaller than the sum of its proper divisors (14312210355584).

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

13011100323220 is a wasteful number, since it uses less digits than its factorization.

13011100323220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650555016170 (or 650555016168 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13011100323220 its reverse (2232300111031), we get a palindrome (15243400434251).

The spelling of 13011100323220 in words is "thirteen trillion, eleven billion, one hundred million, three hundred twenty-three thousand, two hundred twenty".