121052542531 has 8 divisors (see below), whose sum is σ = 129583454400. Its totient is φ = 112737603240.

The previous prime is 121052542489. The next prime is 121052542669. The reversal of 121052542531 is 135245250121.

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 121052542531 - 2²⁵ = 121018988099 is a prime.

It is a super-2 number, since 2×121052542531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121052542493 and 121052542502.

It is not an unprimeable number, because it can be changed into a prime (121052545531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53991985 + ... + 53994226.

It is an arithmetic number, because the mean of its divisors is an integer number (16197931800).

Almost surely, 2^121052542531 is an apocalyptic number.

121052542531 is a deficient number, since it is larger than the sum of its proper divisors (8530911869).

121052542531 is a wasteful number, since it uses less digits than its factorization.

121052542531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107986289.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 121052542531 its reverse (135245250121), we get a palindrome (256297792652).

The spelling of 121052542531 in words is "one hundred twenty-one billion, fifty-two million, five hundred forty-two thousand, five hundred thirty-one".