30211231030031 has 4 divisors (see below), whose sum is σ = 30211258110912. Its totient is φ = 30211203949152.

The previous prime is 30211231030009. The next prime is 30211231030067. The reversal of 30211231030031 is 13003013211203.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30211231030031 is a prime.

It is a super-2 number, since 2×30211231030031² (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 = 30211231029985 and 30211231030012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30211231030831) 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, 11791775 + ... + 14123328.

It is an arithmetic number, because the mean of its divisors is an integer number (7552814527728).

Almost surely, 2^{30211231030031} is an apocalyptic number.

30211231030031 is a deficient number, since it is larger than the sum of its proper divisors (27080881).

30211231030031 is a wasteful number, since it uses less digits than its factorization.

30211231030031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27080880.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 30211231030031 its reverse (13003013211203), we get a palindrome (43214244241234).

The spelling of 30211231030031 in words is "thirty trillion, two hundred eleven billion, two hundred thirty-one million, thirty thousand, thirty-one".