231212332104 has 64 divisors (see below), whose sum is σ = 628205793600. Its totient is φ = 70489564416.

The previous prime is 231212332103. The next prime is 231212332121. The reversal of 231212332104 is 401233212132.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (231212332103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3365374 + ... + 3433389.

It is an arithmetic number, because the mean of its divisors is an integer number (9815715525).

Almost surely, 2^231212332104 is an apocalyptic number.

231212332104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

231212332104 is an abundant number, since it is smaller than the sum of its proper divisors (396993461496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231212332104 is a wasteful number, since it uses less digits than its factorization.

231212332104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6798894 (or 6798890 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 231212332104 its reverse (401233212132), we get a palindrome (632445544236).

The spelling of 231212332104 in words is "two hundred thirty-one billion, two hundred twelve million, three hundred thirty-two thousand, one hundred four".