212203030031 has 4 divisors (see below), whose sum is σ = 221429248752. Its totient is φ = 202976811312.

The previous prime is 212203029979. The next prime is 212203030033. The reversal of 212203030031 is 130030302212.

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 212203030031 - 2⁶ = 212203029967 is a prime.

It is a super-2 number, since 2×212203030031² (a number of 23 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 = 212203029991 and 212203030009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212203030033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4613109326 + ... + 4613109371.

It is an arithmetic number, because the mean of its divisors is an integer number (55357312188).

Almost surely, 2^212203030031 is an apocalyptic number.

212203030031 is a deficient number, since it is larger than the sum of its proper divisors (9226218721).

212203030031 is an equidigital number, since it uses as much as digits as its factorization.

212203030031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9226218720.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 212203030031 its reverse (130030302212), we get a palindrome (342233332243).

The spelling of 212203030031 in words is "two hundred twelve billion, two hundred three million, thirty thousand, thirty-one".