30212100100031 has 4 divisors (see below), whose sum is σ = 30212549839032. Its totient is φ = 30211650361032.

The previous prime is 30212100099997. The next prime is 30212100100081. The reversal of 30212100100031 is 13000100121203.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30212100100031 - 2¹⁴ = 30212100083647 is a prime.

It is a super-2 number, since 2×30212100100031² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30212100099979 and 30212100100015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30212100100081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224768720 + ... + 224903093.

It is an arithmetic number, because the mean of its divisors is an integer number (7553137459758).

Almost surely, 2^{30212100100031} is an apocalyptic number.

30212100100031 is a deficient number, since it is larger than the sum of its proper divisors (449739001).

30212100100031 is an equidigital number, since it uses as much as digits as its factorization.

30212100100031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449739000.

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

Adding to 30212100100031 its reverse (13000100121203), we get a palindrome (43212200221234).

The spelling of 30212100100031 in words is "thirty trillion, two hundred twelve billion, one hundred million, one hundred thousand, thirty-one".