121345531541 has 8 divisors (see below), whose sum is σ = 130683379680. Its totient is φ = 112008194352.

The previous prime is 121345531523. The next prime is 121345531561. The reversal of 121345531541 is 145135543121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121345531541 - 2¹⁰ = 121345530517 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 (121345531561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468686 + ... + 679968.

It is an arithmetic number, because the mean of its divisors is an integer number (16335422460).

Almost surely, 2^121345531541 is an apocalyptic number.

It is an amenable number.

121345531541 is a deficient number, since it is larger than the sum of its proper divisors (9337848139).

121345531541 is a wasteful number, since it uses less digits than its factorization.

121345531541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255475.

The product of its digits is 36000, while the sum is 35.

The spelling of 121345531541 in words is "one hundred twenty-one billion, three hundred forty-five million, five hundred thirty-one thousand, five hundred forty-one".