121311113012102 has 48 divisors (see below), whose sum is σ = 199117397737440. Its totient is φ = 55400575666176.

The previous prime is 121311113012083. The next prime is 121311113012119. The reversal of 121311113012102 is 201210311113121.

It is a super-3 number, since 3×121311113012102³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40937024 + ... + 43800252.

It is an arithmetic number, because the mean of its divisors is an integer number (4148279119530).

Almost surely, 2^{121311113012102} is an apocalyptic number.

121311113012102 is a deficient number, since it is larger than the sum of its proper divisors (77806284725338).

121311113012102 is a wasteful number, since it uses less digits than its factorization.

121311113012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864577 (or 2864564 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 121311113012102 its reverse (201210311113121), we get a palindrome (322521424125223).

The spelling of 121311113012102 in words is "one hundred twenty-one trillion, three hundred eleven billion, one hundred thirteen million, twelve thousand, one hundred two".