30331211012 has 12 divisors (see below), whose sum is σ = 54909951180. Its totient is φ = 14642653536.

The previous prime is 30331210999. The next prime is 30331211017. The reversal of 30331211012 is 21011213303.

It can be written as a sum of positive squares in 2 ways, for example, as 24350354116 + 5980856896 = 156046^2 + 77336^2 .

It is a super-2 number, since 2×30331211012² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30331211017) 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, 130737863 + ... + 130738094.

It is an arithmetic number, because the mean of its divisors is an integer number (4575829265).

Almost surely, 2^30331211012 is an apocalyptic number.

It is an amenable number.

30331211012 is a deficient number, since it is larger than the sum of its proper divisors (24578740168).

30331211012 is a wasteful number, since it uses less digits than its factorization.

30331211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261475990 (or 261475988 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30331211012 its reverse (21011213303), we get a palindrome (51342424315).

The spelling of 30331211012 in words is "thirty billion, three hundred thirty-one million, two hundred eleven thousand, twelve".