103211523 has 8 divisors (see below), whose sum is σ = 152906000. Its totient is φ = 68807664.

The previous prime is 103211513. The next prime is 103211527. The reversal of 103211523 is 325112301.

It is not a de Polignac number, because 103211523 - 2¹² = 103207427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103211496 and 103211505.

It is not an unprimeable number, because it can be changed into a prime (103211527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1911298 + ... + 1911351.

It is an arithmetic number, because the mean of its divisors is an integer number (19113250).

Almost surely, 2^103211523 is an apocalyptic number.

103211523 is a deficient number, since it is larger than the sum of its proper divisors (49694477).

103211523 is an equidigital number, since it uses as much as digits as its factorization.

103211523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3822658 (or 3822652 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 103211523 is about 10159.3072106320. The cubic root of 103211523 is about 469.0754769924.

Adding to 103211523 its reverse (325112301), we get a palindrome (428323824).

The spelling of 103211523 in words is "one hundred three million, two hundred eleven thousand, five hundred twenty-three".