30310011100020 has 24 divisors (see below), whose sum is σ = 84868031080224. Its totient is φ = 8082669626656.

The previous prime is 30310011099983. The next prime is 30310011100099. The reversal of 30310011100020 is 2000111001303.

It is a super-2 number, since 2×30310011100020² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 30310011099969 and 30310011100005.

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, 252583425774 + ... + 252583425893.

It is an arithmetic number, because the mean of its divisors is an integer number (3536167961676).

Almost surely, 2^{30310011100020} is an apocalyptic number.

30310011100020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30310011100020 is an abundant number, since it is smaller than the sum of its proper divisors (54558019980204).

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

30310011100020 is a wasteful number, since it uses less digits than its factorization.

30310011100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505166851679 (or 505166851677 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 30310011100020 its reverse (2000111001303), we get a palindrome (32310122101323).

The spelling of 30310011100020 in words is "thirty trillion, three hundred ten billion, eleven million, one hundred thousand, twenty".