30031020100 has 36 divisors (see below), whose sum is σ = 65220264004. Its totient is φ = 12002647680.

The previous prime is 30031020079. The next prime is 30031020109. The reversal of 30031020100 is 102013003.

It can be written as a sum of positive squares in 6 ways, for example, as 304432704 + 29726587396 = 17448^2 + 172414^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (30031020109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2314 + ... + 245086.

Almost surely, 2^30031020100 is an apocalyptic number.

It is an amenable number.

30031020100 is an abundant number, since it is smaller than the sum of its proper divisors (35189243904).

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

30031020100 is a wasteful number, since it uses less digits than its factorization.

30031020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244024 (or 244017 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

Adding to 30031020100 its reverse (102013003), we get a palindrome (30133033103).

The spelling of 30031020100 in words is "thirty billion, thirty-one million, twenty thousand, one hundred".