121111314140 has 12 divisors (see below), whose sum is σ = 254333759736. Its totient is φ = 48444525648.

The previous prime is 121111314113. The next prime is 121111314143. The reversal of 121111314140 is 41413111121.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 6055565707 = 121111314140 / (1 + 2 + 1 + 1 + 1 + 1 + 3 + 1 + 4 + 1 + 4 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121111314143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3027782834 + ... + 3027782873.

It is an arithmetic number, because the mean of its divisors is an integer number (21194479978).

Almost surely, 2^121111314140 is an apocalyptic number.

121111314140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121111314140 is an abundant number, since it is smaller than the sum of its proper divisors (133222445596).

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

121111314140 is a wasteful number, since it uses less digits than its factorization.

121111314140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6055565716 (or 6055565714 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 121111314140 its reverse (41413111121), we get a palindrome (162524425261).

The spelling of 121111314140 in words is "one hundred twenty-one billion, one hundred eleven million, three hundred fourteen thousand, one hundred forty".