30123231311 has 4 divisors (see below), whose sum is σ = 31895186112. Its totient is φ = 28351276512.

The previous prime is 30123231293. The next prime is 30123231403. The reversal of 30123231311 is 11313232103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11313232103 = 43 ⋅263098421.

It is a cyclic number.

It is not a de Polignac number, because 30123231311 - 2¹⁸ = 30122969167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123233311) 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, 885977375 + ... + 885977408.

It is an arithmetic number, because the mean of its divisors is an integer number (7973796528).

Almost surely, 2^30123231311 is an apocalyptic number.

30123231311 is a deficient number, since it is larger than the sum of its proper divisors (1771954801).

30123231311 is a wasteful number, since it uses less digits than its factorization.

30123231311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771954800.

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

Adding to 30123231311 its reverse (11313232103), we get a palindrome (41436463414).

It can be divided in two parts, 3012 and 3231311, that added together give a palindrome (3234323).

The spelling of 30123231311 in words is "thirty billion, one hundred twenty-three million, two hundred thirty-one thousand, three hundred eleven".