30312303131023 has 16 divisors (see below), whose sum is σ = 33637754327040. Its totient is φ = 27199277863200.

The previous prime is 30312303131009. The next prime is 30312303131057. The reversal of 30312303131023 is 32013130321303.

It is a cyclic number.

It is not a de Polignac number, because 30312303131023 - 2⁹ = 30312303130511 is a prime.

It is a super-2 number, since 2×30312303131023² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312303131083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547461808 + ... + 547517173.

It is an arithmetic number, because the mean of its divisors is an integer number (2102359645440).

Almost surely, 2^{30312303131023} is an apocalyptic number.

30312303131023 is a deficient number, since it is larger than the sum of its proper divisors (3325451196017).

30312303131023 is a wasteful number, since it uses less digits than its factorization.

30312303131023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094979078.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 30312303131023 its reverse (32013130321303), we get a palindrome (62325433452326).

The spelling of 30312303131023 in words is "thirty trillion, three hundred twelve billion, three hundred three million, one hundred thirty-one thousand, twenty-three".