121752741351 has 16 divisors (see below), whose sum is σ = 162594473184. Its totient is φ = 81039834624.

The previous prime is 121752741311. The next prime is 121752741359. The reversal of 121752741351 is 153147257121.

It is not a de Polignac number, because 121752741351 - 2³⁰ = 120678999527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121752741359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7131141 + ... + 7148193.

It is an arithmetic number, because the mean of its divisors is an integer number (10162154574).

Almost surely, 2^121752741351 is an apocalyptic number.

121752741351 is a deficient number, since it is larger than the sum of its proper divisors (40841731833).

121752741351 is a wasteful number, since it uses less digits than its factorization.

121752741351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20690.

The product of its digits is 58800, while the sum is 39.

Adding to 121752741351 its reverse (153147257121), we get a palindrome (274899998472).

The spelling of 121752741351 in words is "one hundred twenty-one billion, seven hundred fifty-two million, seven hundred forty-one thousand, three hundred fifty-one".