30311140312 has 16 divisors (see below), whose sum is σ = 57118986000. Its totient is φ = 15079410720.

The previous prime is 30311140303. The next prime is 30311140339. The reversal of 30311140312 is 21304111303.

It is a self number, because there is not a number n which added to its sum of digits gives 30311140312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9518239 + ... + 9521422.

It is an arithmetic number, because the mean of its divisors is an integer number (3569936625).

Almost surely, 2^30311140312 is an apocalyptic number.

It is an amenable number.

30311140312 is a deficient number, since it is larger than the sum of its proper divisors (26807845688).

30311140312 is a wasteful number, since it uses less digits than its factorization.

30311140312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19039866 (or 19039862 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 30311140312 its reverse (21304111303), we get a palindrome (51615251615).

The spelling of 30311140312 in words is "thirty billion, three hundred eleven million, one hundred forty thousand, three hundred twelve".