121431133104241 has 32 divisors (see below), whose sum is σ = 125509340436480. Its totient is φ = 117430181167104.

The previous prime is 121431133104227. The next prime is 121431133104289. The reversal of 121431133104241 is 142401331134121.

It is a cyclic number.

It is not a de Polignac number, because 121431133104241 - 2¹⁵ = 121431133071473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121431133104221) 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, 9881280625 + ... + 9881292913.

It is an arithmetic number, because the mean of its divisors is an integer number (3922166888640).

Almost surely, 2^{121431133104241} is an apocalyptic number.

It is an amenable number.

121431133104241 is a deficient number, since it is larger than the sum of its proper divisors (4078207332239).

121431133104241 is a wasteful number, since it uses less digits than its factorization.

121431133104241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20785.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 121431133104241 its reverse (142401331134121), we get a palindrome (263832464238362).

The spelling of 121431133104241 in words is "one hundred twenty-one trillion, four hundred thirty-one billion, one hundred thirty-three million, one hundred four thousand, two hundred forty-one".