103201021312 has 32 divisors (see below), whose sum is σ = 205613793000. Its totient is φ = 51595991040.

The previous prime is 103201021291. The next prime is 103201021369. The reversal of 103201021312 is 213120102301.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-3 number, since 3×103201021312³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1804939 + ... + 1861237.

Almost surely, 2^103201021312 is an apocalyptic number.

It is an amenable number.

103201021312 is a deficient number, since it is larger than the sum of its proper divisors (102412771688).

103201021312 is an equidigital number, since it uses as much as digits as its factorization.

103201021312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70634 (or 70622 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 103201021312 its reverse (213120102301), we get a palindrome (316321123613).

The spelling of 103201021312 in words is "one hundred three billion, two hundred one million, twenty-one thousand, three hundred twelve".