30013212231992 has 32 divisors (see below), whose sum is σ = 61502893038720. Its totient is φ = 13617428828640.

The previous prime is 30013212231979. The next prime is 30013212232043. The reversal of 30013212231992 is 29913221231003.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311706188 + ... + 311802459.

It is an arithmetic number, because the mean of its divisors is an integer number (1921965407460).

Almost surely, 2^{30013212231992} is an apocalyptic number.

It is an amenable number.

30013212231992 is an abundant number, since it is smaller than the sum of its proper divisors (31489680806728).

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

30013212231992 is a wasteful number, since it uses less digits than its factorization.

30013212231992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623509211 (or 623509207 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

Adding to 30013212231992 its reverse (29913221231003), we get a palindrome (59926433462995).

The spelling of 30013212231992 in words is "thirty trillion, thirteen billion, two hundred twelve million, two hundred thirty-one thousand, nine hundred ninety-two".