121203432013144 has 32 divisors (see below), whose sum is σ = 259134034511520. Its totient is φ = 52649454629376.

The previous prime is 121203432013099. The next prime is 121203432013171. The reversal of 121203432013144 is 441310234302121.

It is a happy number.

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, 34276986924 + ... + 34276990459.

It is an arithmetic number, because the mean of its divisors is an integer number (8097938578485).

Almost surely, 2^{121203432013144} is an apocalyptic number.

It is an amenable number.

121203432013144 is an abundant number, since it is smaller than the sum of its proper divisors (137930602498376).

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

121203432013144 is a wasteful number, since it uses less digits than its factorization.

121203432013144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68553977419 (or 68553977415 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 121203432013144 its reverse (441310234302121), we get a palindrome (562513666315265).

The spelling of 121203432013144 in words is "one hundred twenty-one trillion, two hundred three billion, four hundred thirty-two million, thirteen thousand, one hundred forty-four".