121152653152 has 96 divisors (see below), whose sum is σ = 256084053120. Its totient is φ = 56217108480.

The previous prime is 121152653129. The next prime is 121152653191. The reversal of 121152653152 is 251356251121.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45596208 + ... + 45598864.

It is an arithmetic number, because the mean of its divisors is an integer number (2667542220).

Almost surely, 2^121152653152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121152653152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128042026560).

121152653152 is an abundant number, since it is smaller than the sum of its proper divisors (134931399968).

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

121152653152 is a wasteful number, since it uses less digits than its factorization.

121152653152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3824 (or 3816 counting only the distinct ones).

The product of its digits is 18000, while the sum is 34.

The spelling of 121152653152 in words is "one hundred twenty-one billion, one hundred fifty-two million, six hundred fifty-three thousand, one hundred fifty-two".