121311302111000 has 64 divisors (see below), whose sum is σ = 283886465035680. Its totient is φ = 48521440828800.

The previous prime is 121311302110963. The next prime is 121311302111003. The reversal of 121311302111000 is 111203113121.

It is a self number, because there is not a number n which added to its sum of digits gives 121311302111000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121311302111003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11944874 + ... + 19629126.

Almost surely, 2^{121311302111000} is an apocalyptic number.

121311302111000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121311302111000 is an abundant number, since it is smaller than the sum of its proper divisors (162575162924680).

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

121311302111000 is a wasteful number, since it uses less digits than its factorization.

121311302111000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7700061 (or 7700047 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 121311302111000 its reverse (111203113121), we get a palindrome (121422505224121).

The spelling of 121311302111000 in words is "one hundred twenty-one trillion, three hundred eleven billion, three hundred two million, one hundred eleven thousand".