231020014433 has 8 divisors (see below), whose sum is σ = 248799071976. Its totient is φ = 213242140800.

The previous prime is 231020014427. The next prime is 231020014447. The reversal of 231020014433 is 334410020132.

It can be written as a sum of positive squares in 4 ways, for example, as 204146944 + 230815867489 = 14288^2 + 480433^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231020014433 - 2⁴ = 231020014417 is a prime.

It is a super-2 number, since 2×231020014433² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 231020014399 and 231020014408.

It is not an unprimeable number, because it can be changed into a prime (231020014403) 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, 132263 + ... + 692483.

It is an arithmetic number, because the mean of its divisors is an integer number (31099883997).

Almost surely, 2^231020014433 is an apocalyptic number.

It is an amenable number.

231020014433 is a deficient number, since it is larger than the sum of its proper divisors (17779057543).

231020014433 is a wasteful number, since it uses less digits than its factorization.

231020014433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591955.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 231020014433 its reverse (334410020132), we get a palindrome (565430034565).

The spelling of 231020014433 in words is "two hundred thirty-one billion, twenty million, fourteen thousand, four hundred thirty-three".