212920103 has 8 divisors (see below), whose sum is σ = 233757840. Its totient is φ = 192329280.

The previous prime is 212920091. The next prime is 212920111. The reversal of 212920103 is 301029212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212920103 - 2¹⁶ = 212854567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212920193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59918 + ... + 63371.

It is an arithmetic number, because the mean of its divisors is an integer number (29219730).

Almost surely, 2^212920103 is an apocalyptic number.

212920103 is a deficient number, since it is larger than the sum of its proper divisors (20837737).

212920103 is a wasteful number, since it uses less digits than its factorization.

212920103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123457.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 212920103 is about 14591.7820364752. The cubic root of 212920103 is about 597.1345809252.

Adding to 212920103 its reverse (301029212), we get a palindrome (513949315).

The spelling of 212920103 in words is "two hundred twelve million, nine hundred twenty thousand, one hundred three".