30031110221131 has 12 divisors (see below), whose sum is σ = 31411696373568. Its totient is φ = 28708833360944.

The previous prime is 30031110221129. The next prime is 30031110221191. The reversal of 30031110221131 is 13112201113003.

It is not a de Polignac number, because 30031110221131 - 2¹ = 30031110221129 is a prime.

It is a super-2 number, since 2×30031110221131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30031110221099 and 30031110221108.

It is not an unprimeable number, because it can be changed into a prime (30031110221111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15462235 + ... + 17295748.

It is an arithmetic number, because the mean of its divisors is an integer number (2617641364464).

Almost surely, 2^{30031110221131} is an apocalyptic number.

30031110221131 is a deficient number, since it is larger than the sum of its proper divisors (1380586152437).

30031110221131 is a wasteful number, since it uses less digits than its factorization.

30031110221131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32759762 (or 32759739 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 30031110221131 its reverse (13112201113003), we get a palindrome (43143311334134).

The spelling of 30031110221131 in words is "thirty trillion, thirty-one billion, one hundred ten million, two hundred twenty-one thousand, one hundred thirty-one".