103213321212 has 48 divisors (see below), whose sum is σ = 255348737280. Its totient is φ = 32336063232.

The previous prime is 103213321187. The next prime is 103213321231. The reversal of 103213321212 is 212123312301.

It is a super-2 number, since 2×103213321212² (a number of 23 digits) contains 22 as substring.

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, 199662 + ... + 496277.

It is an arithmetic number, because the mean of its divisors is an integer number (5319765360).

Almost surely, 2^103213321212 is an apocalyptic number.

103213321212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103213321212 is an abundant number, since it is smaller than the sum of its proper divisors (152135416068).

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

103213321212 is a wasteful number, since it uses less digits than its factorization.

103213321212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696690 (or 696688 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 103213321212 its reverse (212123312301), we get a palindrome (315336633513).

The spelling of 103213321212 in words is "one hundred three billion, two hundred thirteen million, three hundred twenty-one thousand, two hundred twelve".