121532524131 has 8 divisors (see below), whose sum is σ = 163864077840. Its totient is φ = 80111326592.

The previous prime is 121532524109. The next prime is 121532524133. The reversal of 121532524131 is 131425235121.

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 121532524131 - 2¹³ = 121532515939 is a prime.

It is a super-2 number, since 2×121532524131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121532524133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227588730 + ... + 227589263.

It is an arithmetic number, because the mean of its divisors is an integer number (20483009730).

Almost surely, 2^121532524131 is an apocalyptic number.

121532524131 is a deficient number, since it is larger than the sum of its proper divisors (42331553709).

121532524131 is an equidigital number, since it uses as much as digits as its factorization.

121532524131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455178085.

The product of its digits is 7200, while the sum is 30.

Adding to 121532524131 its reverse (131425235121), we get a palindrome (252957759252).

The spelling of 121532524131 in words is "one hundred twenty-one billion, five hundred thirty-two million, five hundred twenty-four thousand, one hundred thirty-one".