13100123771220 has 48 divisors (see below), whose sum is σ = 36680565354048. Its totient is φ = 3493345501440.

The previous prime is 13100123771219. The next prime is 13100123771263. The reversal of 13100123771220 is 2217732100131.

It is a super-2 number, since 2×13100123771220² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 11306107 + ... + 12410813.

It is an arithmetic number, because the mean of its divisors is an integer number (764178444876).

Almost surely, 2^{13100123771220} is an apocalyptic number.

13100123771220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13100123771220 is an abundant number, since it is smaller than the sum of its proper divisors (23580441582828).

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

13100123771220 is a wasteful number, since it uses less digits than its factorization.

13100123771220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302360 (or 1302358 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

Adding to 13100123771220 its reverse (2217732100131), we get a palindrome (15317855871351).

The spelling of 13100123771220 in words is "thirteen trillion, one hundred billion, one hundred twenty-three million, seven hundred seventy-one thousand, two hundred twenty".