30211133131 has 4 divisors (see below), whose sum is σ = 30488299600. Its totient is φ = 29933966664.

The previous prime is 30211133089. The next prime is 30211133201. The reversal of 30211133131 is 13133111203.

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 30211133131 - 2⁹ = 30211132619 is a prime.

It is a super-2 number, since 2×30211133131² (a number of 22 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 = 30211133099 and 30211133108.

It is not an unprimeable number, because it can be changed into a prime (30211133531) 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, 138583071 + ... + 138583288.

It is an arithmetic number, because the mean of its divisors is an integer number (7622074900).

Almost surely, 2^30211133131 is an apocalyptic number.

30211133131 is a deficient number, since it is larger than the sum of its proper divisors (277166469).

30211133131 is a wasteful number, since it uses less digits than its factorization.

30211133131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277166468.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 30211133131 its reverse (13133111203), we get a palindrome (43344244334).

The spelling of 30211133131 in words is "thirty billion, two hundred eleven million, one hundred thirty-three thousand, one hundred thirty-one".