231212322033 has 48 divisors (see below), whose sum is σ = 391348520640. Its totient is φ = 120069734400.

The previous prime is 231212322023. The next prime is 231212322043. The reversal of 231212322033 is 330223212132.

231212322033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231212322023) and next prime (231212322043).

It is a de Polignac number, because none of the positive numbers 2^k-231212322033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231212321994 and 231212322012.

It is not an unprimeable number, because it can be changed into a prime (231212322023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5101713 + ... + 5146833.

It is an arithmetic number, because the mean of its divisors is an integer number (8153094180).

Almost surely, 2^231212322033 is an apocalyptic number.

It is an amenable number.

231212322033 is a deficient number, since it is larger than the sum of its proper divisors (160136198607).

231212322033 is a wasteful number, since it uses less digits than its factorization.

231212322033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48318 (or 48311 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 231212322033 its reverse (330223212132), we get a palindrome (561435534165).

The spelling of 231212322033 in words is "two hundred thirty-one billion, two hundred twelve million, three hundred twenty-two thousand, thirty-three".