121013201124 has 24 divisors (see below), whose sum is σ = 313737929120. Its totient is φ = 40337733672.

The previous prime is 121013201123. The next prime is 121013201129. The reversal of 121013201124 is 421102310121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121013201097 and 121013201106.

It is not an unprimeable number, because it can be changed into a prime (121013201123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560246194 + ... + 560246409.

Almost surely, 2^121013201124 is an apocalyptic number.

It is an amenable number.

121013201124 is an abundant number, since it is smaller than the sum of its proper divisors (192724727996).

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

121013201124 is a wasteful number, since it uses less digits than its factorization.

121013201124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120492616 (or 1120492608 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 121013201124 its reverse (421102310121), we get a palindrome (542115511245).

The spelling of 121013201124 in words is "one hundred twenty-one billion, thirteen million, two hundred one thousand, one hundred twenty-four".