121531142201 has 8 divisors (see below), whose sum is σ = 141847898880. Its totient is φ = 101953176768.

The previous prime is 121531142171. The next prime is 121531142221. The reversal of 121531142201 is 102241135121.

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 121531142201 - 2¹⁰ = 121531141177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121531142221) 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, 184697456 + ... + 184698113.

It is an arithmetic number, because the mean of its divisors is an integer number (17730987360).

Almost surely, 2^121531142201 is an apocalyptic number.

It is an amenable number.

121531142201 is a deficient number, since it is larger than the sum of its proper divisors (20316756679).

121531142201 is an equidigital number, since it uses as much as digits as its factorization.

121531142201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369395623.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 121531142201 its reverse (102241135121), we get a palindrome (223772277322).

The spelling of 121531142201 in words is "one hundred twenty-one billion, five hundred thirty-one million, one hundred forty-two thousand, two hundred one".