30121434552 has 64 divisors (see below), whose sum is σ = 82740470400. Its totient is φ = 9062029440.

The previous prime is 30121434529. The next prime is 30121434569. The reversal of 30121434552 is 25543412103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373723 + ... + 447114.

It is an arithmetic number, because the mean of its divisors is an integer number (1292819850).

Almost surely, 2^30121434552 is an apocalyptic number.

It is an amenable number.

30121434552 is an abundant number, since it is smaller than the sum of its proper divisors (52619035848).

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

30121434552 is a wasteful number, since it uses less digits than its factorization.

30121434552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820996 (or 820992 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 30121434552 its reverse (25543412103), we get a palindrome (55664846655).

The spelling of 30121434552 in words is "thirty billion, one hundred twenty-one million, four hundred thirty-four thousand, five hundred fifty-two".