30312101321131 has 4 divisors (see below), whose sum is σ = 34642401509872. Its totient is φ = 25981801132392.

The previous prime is 30312101321123. The next prime is 30312101321137. The reversal of 30312101321131 is 13112310121303.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 30312101321131 - 2³ = 30312101321123 is a prime.

It is a super-2 number, since 2×30312101321131² (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 (30312101321137) 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, 2165150094360 + ... + 2165150094373.

It is an arithmetic number, because the mean of its divisors is an integer number (8660600377468).

Almost surely, 2^{30312101321131} is an apocalyptic number.

30312101321131 is a deficient number, since it is larger than the sum of its proper divisors (4330300188741).

30312101321131 is an equidigital number, since it uses as much as digits as its factorization.

30312101321131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4330300188740.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 30312101321131 its reverse (13112310121303), we get a palindrome (43424411442434).

The spelling of 30312101321131 in words is "thirty trillion, three hundred twelve billion, one hundred one million, three hundred twenty-one thousand, one hundred thirty-one".