30311320010203 has 4 divisors (see below), whose sum is σ = 30311336733160. Its totient is φ = 30311303287248.

The previous prime is 30311320010189. The next prime is 30311320010233. The reversal of 30311320010203 is 30201002311303.

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 30311320010203 - 2⁵ = 30311320010171 is a prime.

It is a super-2 number, since 2×30311320010203² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30311320010233) 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, 5258898 + ... + 9395671.

It is an arithmetic number, because the mean of its divisors is an integer number (7577834183290).

Almost surely, 2^{30311320010203} is an apocalyptic number.

30311320010203 is a deficient number, since it is larger than the sum of its proper divisors (16722957).

30311320010203 is a wasteful number, since it uses less digits than its factorization.

30311320010203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16722956.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 30311320010203 its reverse (30201002311303), we get a palindrome (60512322321506).

The spelling of 30311320010203 in words is "thirty trillion, three hundred eleven billion, three hundred twenty million, ten thousand, two hundred three".