103211311 has 8 divisors (see below), whose sum is σ = 118463904. Its totient is φ = 88085760.

The previous prime is 103211293. The next prime is 103211341. The reversal of 103211311 is 113112301.

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

It is not a de Polignac number, because 103211311 - 2⁹ = 103210799 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103211291 and 103211300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103211341) 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, 30010 + ... + 33271.

It is an arithmetic number, because the mean of its divisors is an integer number (14807988).

Almost surely, 2^103211311 is an apocalyptic number.

103211311 is a deficient number, since it is larger than the sum of its proper divisors (15252593).

103211311 is an equidigital number, since it uses as much as digits as its factorization.

103211311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63521.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 103211311 is about 10159.2967768444. The cubic root of 103211311 is about 469.0751558265.

Adding to 103211311 its reverse (113112301), we get a palindrome (216323612).

The spelling of 103211311 in words is "one hundred three million, two hundred eleven thousand, three hundred eleven".