30840431443012 has 48 divisors (see below), whose sum is σ = 56117748943872. Its totient is φ = 14820166609920.

The previous prime is 30840431442943. The next prime is 30840431443013. The reversal of 30840431443012 is 21034413404803.

It is a super-2 number, since 2×30840431443012² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30840431443013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2456164 + ... + 8228827.

It is an arithmetic number, because the mean of its divisors is an integer number (1169119769664).

Almost surely, 2^{30840431443012} is an apocalyptic number.

It is an amenable number.

30840431443012 is a deficient number, since it is larger than the sum of its proper divisors (25277317500860).

30840431443012 is a wasteful number, since it uses less digits than its factorization.

30840431443012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10685308 (or 10685306 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 37.

Adding to 30840431443012 its reverse (21034413404803), we get a palindrome (51874844847815).

The spelling of 30840431443012 in words is "thirty trillion, eight hundred forty billion, four hundred thirty-one million, four hundred forty-three thousand, twelve".