30431344111212 has 48 divisors (see below), whose sum is σ = 79960364596224. Its totient is φ = 8924147832000.

The previous prime is 30431344111211. The next prime is 30431344111261. The reversal of 30431344111212 is 21211144313403.

It is a self number, because there is not a number n which added to its sum of digits gives 30431344111212.

It is not an unprimeable number, because it can be changed into a prime (30431344111211) 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, 3718390839 + ... + 3718399022.

It is an arithmetic number, because the mean of its divisors is an integer number (1665840929088).

Almost surely, 2^{30431344111212} is an apocalyptic number.

It is an amenable number.

30431344111212 is an abundant number, since it is smaller than the sum of its proper divisors (49529020485012).

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

30431344111212 is a wasteful number, since it uses less digits than its factorization.

30431344111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7436789910 (or 7436789908 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 30431344111212 its reverse (21211144313403), we get a palindrome (51642488424615).

The spelling of 30431344111212 in words is "thirty trillion, four hundred thirty-one billion, three hundred forty-four million, one hundred eleven thousand, two hundred twelve".