30131033012 has 12 divisors (see below), whose sum is σ = 52736549796. Its totient is φ = 15063447360.

The previous prime is 30131033011. The next prime is 30131033027. The reversal of 30131033012 is 21033013103.

It can be written as a sum of positive squares in 2 ways, for example, as 5546674576 + 24584358436 = 74476^2 + 156794^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30131033011) 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, 484289 + ... + 542952.

It is an arithmetic number, because the mean of its divisors is an integer number (4394712483).

Almost surely, 2^30131033012 is an apocalyptic number.

It is an amenable number.

30131033012 is a deficient number, since it is larger than the sum of its proper divisors (22605516784).

30131033012 is a wasteful number, since it uses less digits than its factorization.

30131033012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034578 (or 1034576 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 30131033012 its reverse (21033013103), we get a palindrome (51164046115).

The spelling of 30131033012 in words is "thirty billion, one hundred thirty-one million, thirty-three thousand, twelve".