103512355 has 4 divisors (see below), whose sum is σ = 124214832. Its totient is φ = 82809880.

The previous prime is 103512319. The next prime is 103512389. The reversal of 103512355 is 553215301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 553215301 = 7541 ⋅73361.

It is a de Polignac number, because none of the positive numbers 2^k-103512355 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10351231 + ... + 10351240.

It is an arithmetic number, because the mean of its divisors is an integer number (31053708).

Almost surely, 2^103512355 is an apocalyptic number.

103512355 is a deficient number, since it is larger than the sum of its proper divisors (20702477).

103512355 is an equidigital number, since it uses as much as digits as its factorization.

103512355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20702476.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 103512355 is about 10174.1021716906. The cubic root of 103512355 is about 469.5307751030.

Adding to 103512355 its reverse (553215301), we get a palindrome (656727656).

The spelling of 103512355 in words is "one hundred three million, five hundred twelve thousand, three hundred fifty-five".