103211481 has 8 divisors (see below), whose sum is σ = 140815840. Its totient is φ = 67207392.

The previous prime is 103211467. The next prime is 103211489. The reversal of 103211481 is 184112301.

It is a happy number.

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

It is not a de Polignac number, because 103211481 - 2⁶ = 103211417 is a prime.

It is a super-2 number, since 2×103211481² = 21305219620426722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103211489) 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, 399916 + ... + 400173.

It is an arithmetic number, because the mean of its divisors is an integer number (17601980).

Almost surely, 2^103211481 is an apocalyptic number.

It is an amenable number.

103211481 is a deficient number, since it is larger than the sum of its proper divisors (37604359).

103211481 is an equidigital number, since it uses as much as digits as its factorization.

103211481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800135.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 103211481 is about 10159.3051435617. The cubic root of 103211481 is about 469.0754133653.

Adding to 103211481 its reverse (184112301), we get a palindrome (287323782).

The spelling of 103211481 in words is "one hundred three million, two hundred eleven thousand, four hundred eighty-one".