10011231312 has 40 divisors (see below), whose sum is σ = 25868121120. Its totient is φ = 3336332160.

The previous prime is 10011231281. The next prime is 10011231341. The reversal of 10011231312 is 21313211001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10011231291 and 10011231300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220239 + ... + 261777.

It is an arithmetic number, because the mean of its divisors is an integer number (646703028).

Almost surely, 2^10011231312 is an apocalyptic number.

10011231312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10011231312 is an abundant number, since it is smaller than the sum of its proper divisors (15856889808).

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

10011231312 is a wasteful number, since it uses less digits than its factorization.

10011231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46571 (or 46565 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 10011231312 its reverse (21313211001), we get a palindrome (31324442313).

The spelling of 10011231312 in words is "ten billion, eleven million, two hundred thirty-one thousand, three hundred twelve".