101231235312 has 20 divisors (see below), whose sum is σ = 261514024680. Its totient is φ = 33743745088.

The previous prime is 101231235283. The next prime is 101231235317. The reversal of 101231235312 is 213532132101.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101231235317) 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 3 ways as a sum of consecutive naturals, for example, 1054491987 + ... + 1054492082.

It is an arithmetic number, because the mean of its divisors is an integer number (13075701234).

Almost surely, 2^101231235312 is an apocalyptic number.

101231235312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101231235312 is an abundant number, since it is smaller than the sum of its proper divisors (160282789368).

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

101231235312 is a wasteful number, since it uses less digits than its factorization.

101231235312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108984080 (or 2108984074 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 101231235312 its reverse (213532132101), we get a palindrome (314763367413).

The spelling of 101231235312 in words is "one hundred one billion, two hundred thirty-one million, two hundred thirty-five thousand, three hundred twelve".