121752036311 has 4 divisors (see below), whose sum is σ = 122298009792. Its totient is φ = 121206062832.

The previous prime is 121752036299. The next prime is 121752036317. The reversal of 121752036311 is 113630257121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113630257121 = 181693 ⋅625397.

It is a cyclic number.

It is not a de Polignac number, because 121752036311 - 2¹⁰ = 121752035287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121752036317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272986406 + ... + 272986851.

It is an arithmetic number, because the mean of its divisors is an integer number (30574502448).

Almost surely, 2^121752036311 is an apocalyptic number.

121752036311 is a deficient number, since it is larger than the sum of its proper divisors (545973481).

121752036311 is an equidigital number, since it uses as much as digits as its factorization.

121752036311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545973480.

The product of its (nonzero) digits is 7560, while the sum is 32.

The spelling of 121752036311 in words is "one hundred twenty-one billion, seven hundred fifty-two million, thirty-six thousand, three hundred eleven".