121203100321120 has 48 divisors (see below), whose sum is σ = 286416106528608. Its totient is φ = 48468747934720.

The previous prime is 121203100321111. The next prime is 121203100321133. The reversal of 121203100321120 is 21123001302121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96972364 + ... + 98214283.

It is an arithmetic number, because the mean of its divisors is an integer number (5967002219346).

Almost surely, 2^{121203100321120} is an apocalyptic number.

121203100321120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121203100321120 is an abundant number, since it is smaller than the sum of its proper divisors (165213006207488).

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

121203100321120 is a wasteful number, since it uses less digits than its factorization.

121203100321120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195190543 (or 195190535 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121203100321120 its reverse (21123001302121), we get a palindrome (142326101623241).

The spelling of 121203100321120 in words is "one hundred twenty-one trillion, two hundred three billion, one hundred million, three hundred twenty-one thousand, one hundred twenty".