312113103 has 4 divisors (see below), whose sum is σ = 416150808. Its totient is φ = 208075400.

The previous prime is 312113101. The next prime is 312113111. The reversal of 312113103 is 301311213.

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 312113103 - 2¹ = 312113101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312113101) 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, 52018848 + ... + 52018853.

It is an arithmetic number, because the mean of its divisors is an integer number (104037702).

Almost surely, 2^312113103 is an apocalyptic number.

312113103 is a deficient number, since it is larger than the sum of its proper divisors (104037705).

312113103 is a wasteful number, since it uses less digits than its factorization.

312113103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104037704.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 312113103 is about 17666.7230407906. The cubic root of 312113103 is about 678.3242351519.

Adding to 312113103 its reverse (301311213), we get a palindrome (613424316).

The spelling of 312113103 in words is "three hundred twelve million, one hundred thirteen thousand, one hundred three".