30312031312103 has 8 divisors (see below), whose sum is σ = 30340813698048. Its totient is φ = 30283250576184.

The previous prime is 30312031312099. The next prime is 30312031312109. The reversal of 30312031312103 is 30121313021303.

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

It is a cyclic number.

It is not a de Polignac number, because 30312031312103 - 2² = 30312031312099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312031312109) 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, 38045300 + ... + 38833862.

It is an arithmetic number, because the mean of its divisors is an integer number (3792601712256).

Almost surely, 2^{30312031312103} is an apocalyptic number.

30312031312103 is a deficient number, since it is larger than the sum of its proper divisors (28782385945).

30312031312103 is a wasteful number, since it uses less digits than its factorization.

30312031312103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825013.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 30312031312103 its reverse (30121313021303), we get a palindrome (60433344333406).

The spelling of 30312031312103 in words is "thirty trillion, three hundred twelve billion, thirty-one million, three hundred twelve thousand, one hundred three".