121111300102 has 16 divisors (see below), whose sum is σ = 196624461600. Its totient is φ = 55616628672.

The previous prime is 121111300087. The next prime is 121111300103. The reversal of 121111300102 is 201003111121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121111300103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11698663 + ... + 11709010.

It is an arithmetic number, because the mean of its divisors is an integer number (12289028850).

Almost surely, 2^121111300102 is an apocalyptic number.

121111300102 is a deficient number, since it is larger than the sum of its proper divisors (75513161498).

121111300102 is a wasteful number, since it uses less digits than its factorization.

121111300102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23407887.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 121111300102 its reverse (201003111121), we get a palindrome (322114411223).

The spelling of 121111300102 in words is "one hundred twenty-one billion, one hundred eleven million, three hundred thousand, one hundred two".