103213111312 has 20 divisors (see below), whose sum is σ = 203364818640. Its totient is φ = 50731867808.

The previous prime is 103213111289. The next prime is 103213111343. The reversal of 103213111312 is 213111312301.

It is a super-2 number, since 2×103213111312² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 103213111312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54667018 + ... + 54668905.

It is an arithmetic number, because the mean of its divisors is an integer number (10168240932).

Almost surely, 2^103213111312 is an apocalyptic number.

It is an amenable number.

103213111312 is a deficient number, since it is larger than the sum of its proper divisors (100151707328).

103213111312 is a wasteful number, since it uses less digits than its factorization.

103213111312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109335990 (or 109335984 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 103213111312 its reverse (213111312301), we get a palindrome (316324423613).

The spelling of 103213111312 in words is "one hundred three billion, two hundred thirteen million, one hundred eleven thousand, three hundred twelve".