10203312312 has 64 divisors (see below), whose sum is σ = 28380429600. Its totient is φ = 3396556800.

The previous prime is 10203312307. The next prime is 10203312349. The reversal of 10203312312 is 21321330201.

10203312312 is a `hidden beast` number, since 1 + 0 + 20 + 331 + 2 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132312 + ... + 194712.

Almost surely, 2^10203312312 is an apocalyptic number.

10203312312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10203312312 is an abundant number, since it is smaller than the sum of its proper divisors (18177117288).

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

10203312312 is a wasteful number, since it uses less digits than its factorization.

10203312312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63173 (or 63163 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 10203312312 its reverse (21321330201), we get a palindrome (31524642513).

The spelling of 10203312312 in words is "ten billion, two hundred three million, three hundred twelve thousand, three hundred twelve".