103215011 has 4 divisors (see below), whose sum is σ = 108647400. Its totient is φ = 97782624.

The previous prime is 103214981. The next prime is 103215017. The reversal of 103215011 is 110512301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110512301 = 29 ⋅3810769.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103215011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103215017) 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, 2716166 + ... + 2716203.

It is an arithmetic number, because the mean of its divisors is an integer number (27161850).

Almost surely, 2^103215011 is an apocalyptic number.

103215011 is a deficient number, since it is larger than the sum of its proper divisors (5432389).

103215011 is an equidigital number, since it uses as much as digits as its factorization.

103215011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5432388.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 103215011 is about 10159.4788744305. The cubic root of 103215011 is about 469.0807610175.

Adding to 103215011 its reverse (110512301), we get a palindrome (213727312).

The spelling of 103215011 in words is "one hundred three million, two hundred fifteen thousand, eleven".