231533004311433 has 48 divisors (see below), whose sum is σ = 378443464089600. Its totient is φ = 140289286571280.

The previous prime is 231533004311377. The next prime is 231533004311447. The reversal of 231533004311433 is 334113400335132.

231533004311433 is a `hidden beast` number, since 2 + 3 + 1 + 5 + 3 + 300 + 4 + 311 + 4 + 33 = 666.

It is not a de Polignac number, because 231533004311433 - 2²¹ = 231533002214281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231533004311033) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 703548 + ... + 21530466.

It is an arithmetic number, because the mean of its divisors is an integer number (7884238835200).

Almost surely, 2^{231533004311433} is an apocalyptic number.

It is an amenable number.

231533004311433 is a deficient number, since it is larger than the sum of its proper divisors (146910459778167).

231533004311433 is a wasteful number, since it uses less digits than its factorization.

231533004311433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20831104 (or 20831092 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 36.

Adding to 231533004311433 its reverse (334113400335132), we get a palindrome (565646404646565).

The spelling of 231533004311433 in words is "two hundred thirty-one trillion, five hundred thirty-three billion, four million, three hundred eleven thousand, four hundred thirty-three".