231302230133 has 16 divisors (see below), whose sum is σ = 255493303296. Its totient is φ = 208048841280.

The previous prime is 231302230127. The next prime is 231302230147. The reversal of 231302230133 is 331032203132.

It is a cyclic number.

It is not a de Polignac number, because 231302230133 - 2⁶ = 231302230069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231302230099 and 231302230108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231302235133) 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, 256085 + ... + 726762.

It is an arithmetic number, because the mean of its divisors is an integer number (15968331456).

Almost surely, 2^231302230133 is an apocalyptic number.

It is an amenable number.

231302230133 is a deficient number, since it is larger than the sum of its proper divisors (24191073163).

231302230133 is a wasteful number, since it uses less digits than its factorization.

231302230133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983324.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 231302230133 its reverse (331032203132), we get a palindrome (562334433265).

The spelling of 231302230133 in words is "two hundred thirty-one billion, three hundred two million, two hundred thirty thousand, one hundred thirty-three".