30321431412 has 12 divisors (see below), whose sum is σ = 70750006656. Its totient is φ = 10107143800.

The previous prime is 30321431411. The next prime is 30321431477. The reversal of 30321431412 is 21413412303.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30321431411) 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, 1263392964 + ... + 1263392987.

It is an arithmetic number, because the mean of its divisors is an integer number (5895833888).

Almost surely, 2^30321431412 is an apocalyptic number.

It is an amenable number.

30321431412 is an abundant number, since it is smaller than the sum of its proper divisors (40428575244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30321431412 is a wasteful number, since it uses less digits than its factorization.

30321431412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526785958 (or 2526785956 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 30321431412 its reverse (21413412303), we get a palindrome (51734843715).

The spelling of 30321431412 in words is "thirty billion, three hundred twenty-one million, four hundred thirty-one thousand, four hundred twelve".