121752365527 has 32 divisors (see below), whose sum is σ = 133480327680. Its totient is φ = 110386600320.

The previous prime is 121752365521. The next prime is 121752365533. The reversal of 121752365527 is 725563257121.

It is an interprime number because it is at equal distance from previous prime (121752365521) and next prime (121752365533).

It is a cyclic number.

It is not a de Polignac number, because 121752365527 - 2²⁷ = 121618147799 is a prime.

It is a super-2 number, since 2×121752365527² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121752365521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67228452 + ... + 67230262.

It is an arithmetic number, because the mean of its divisors is an integer number (4171260240).

Almost surely, 2^121752365527 is an apocalyptic number.

121752365527 is a deficient number, since it is larger than the sum of its proper divisors (11727962153).

121752365527 is a wasteful number, since it uses less digits than its factorization.

121752365527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343.

The product of its digits is 882000, while the sum is 46.

The spelling of 121752365527 in words is "one hundred twenty-one billion, seven hundred fifty-two million, three hundred sixty-five thousand, five hundred twenty-seven".