103312212021 has 16 divisors (see below), whose sum is σ = 153289542720. Its totient is φ = 68769321840.

The previous prime is 103312211957. The next prime is 103312212041. The reversal of 103312212021 is 120212213301.

It is not a de Polignac number, because 103312212021 - 2⁶ = 103312211957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103312211985 and 103312212003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103312212041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2912215 + ... + 2947476.

It is an arithmetic number, because the mean of its divisors is an integer number (9580596420).

Almost surely, 2^103312212021 is an apocalyptic number.

It is an amenable number.

103312212021 is a deficient number, since it is larger than the sum of its proper divisors (49977330699).

103312212021 is an equidigital number, since it uses as much as digits as its factorization.

103312212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5860353 (or 5860347 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 103312212021 its reverse (120212213301), we get a palindrome (223524425322).

The spelling of 103312212021 in words is "one hundred three billion, three hundred twelve million, two hundred twelve thousand, twenty-one".