103212331 has 4 divisors (see below), whose sum is σ = 103233312. Its totient is φ = 103191352.

The previous prime is 103212323. The next prime is 103212391. The reversal of 103212331 is 133212301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103212331 - 2³ = 103212323 is a prime.

It is a super-2 number, since 2×103212331² = 21305570540907122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103212301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1326 + ... + 14428.

It is an arithmetic number, because the mean of its divisors is an integer number (25808328).

Almost surely, 2^103212331 is an apocalyptic number.

103212331 is a deficient number, since it is larger than the sum of its proper divisors (20981).

103212331 is an equidigital number, since it uses as much as digits as its factorization.

103212331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20980.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 103212331 is about 10159.3469770453. The cubic root of 103212331 is about 469.0767010547.

Adding to 103212331 its reverse (133212301), we get a palindrome (236424632).

The spelling of 103212331 in words is "one hundred three million, two hundred twelve thousand, three hundred thirty-one".