1211113100102 has 4 divisors (see below), whose sum is σ = 1816669650156. Its totient is φ = 605556550050.

The previous prime is 1211113100081. The next prime is 1211113100123. The reversal of 1211113100102 is 2010013111121.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1211113100081) and next prime (1211113100123).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302778275024 + ... + 302778275027.

It is an arithmetic number, because the mean of its divisors is an integer number (454167412539).

Almost surely, 2^{1211113100102} is an apocalyptic number.

1211113100102 is a deficient number, since it is larger than the sum of its proper divisors (605556550054).

1211113100102 is an equidigital number, since it uses as much as digits as its factorization.

1211113100102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605556550053.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1211113100102 its reverse (2010013111121), we get a palindrome (3221126211223).

The spelling of 1211113100102 in words is "one trillion, two hundred eleven billion, one hundred thirteen million, one hundred thousand, one hundred two".