30031022100 has 72 divisors (see below), whose sum is σ = 86912076160. Its totient is φ = 8006215680.

The previous prime is 30031022089. The next prime is 30031022113. The reversal of 30031022100 is 122013003.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1424436 + ... + 1445364.

Almost surely, 2^30031022100 is an apocalyptic number.

30031022100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30031022100 is an abundant number, since it is smaller than the sum of its proper divisors (56881054060).

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

30031022100 is a wasteful number, since it uses less digits than its factorization.

30031022100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25729 (or 25722 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 30031022100 its reverse (122013003), we get a palindrome (30153035103).

The spelling of 30031022100 in words is "thirty billion, thirty-one million, twenty-two thousand, one hundred".