231453361217 has 16 divisors (see below), whose sum is σ = 268246237392. Its totient is φ = 197785221120.

The previous prime is 231453361211. The next prime is 231453361219. The reversal of 231453361217 is 712163354132.

It is a Cunningham number, because it is equal to 481096²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 2089952656 + 229363408561 = 45716^2 + 478919^2 .

It is a cyclic number.

It is not a de Polignac number, because 231453361217 - 2²⁶ = 231386252353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231453361211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8570948 + ... + 8597909.

It is an arithmetic number, because the mean of its divisors is an integer number (16765389837).

Almost surely, 2^231453361217 is an apocalyptic number.

It is an amenable number.

231453361217 is a deficient number, since it is larger than the sum of its proper divisors (36792876175).

231453361217 is a wasteful number, since it uses less digits than its factorization.

231453361217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17168948.

The product of its digits is 90720, while the sum is 38.

The spelling of 231453361217 in words is "two hundred thirty-one billion, four hundred fifty-three million, three hundred sixty-one thousand, two hundred seventeen".