11131211220102 has 40 divisors (see below), whose sum is σ = 24956147994096. Its totient is φ = 3708322654608.

The previous prime is 11131211220043. The next prime is 11131211220191. The reversal of 11131211220102 is 20102211213111.

It is a happy number.

11131211220102 is a `hidden beast` number, since 1 + 1 + 131 + 211 + 220 + 102 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18979573 + ... + 19557264.

Almost surely, 2^{11131211220102} is an apocalyptic number.

11131211220102 is an abundant number, since it is smaller than the sum of its proper divisors (13824936773994).

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

11131211220102 is a wasteful number, since it uses less digits than its factorization.

11131211220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38538634 (or 38538625 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 11131211220102 its reverse (20102211213111), we get a palindrome (31233422433213).

The spelling of 11131211220102 in words is "eleven trillion, one hundred thirty-one billion, two hundred eleven million, two hundred twenty thousand, one hundred two".