30311121002000 has 80 divisors (see below), whose sum is σ = 77149779657600. Its totient is φ = 11486319523200.

The previous prime is 30311121001999. The next prime is 30311121002023. The reversal of 30311121002000 is 20012111303.

It is a tau number, because it is divible by the number of its divisors (80).

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, 398792540 + ... + 398868539.

It is an arithmetic number, because the mean of its divisors is an integer number (964372245720).

Almost surely, 2^{30311121002000} is an apocalyptic number.

It is an amenable number.

30311121002000 is an abundant number, since it is smaller than the sum of its proper divisors (46838658655600).

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

30311121002000 is a wasteful number, since it uses less digits than its factorization.

30311121002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797661121 (or 797661105 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 30311121002000 its reverse (20012111303), we get a palindrome (30331133113303).

The spelling of 30311121002000 in words is "thirty trillion, three hundred eleven billion, one hundred twenty-one million, two thousand".