212020102031 has 4 divisors (see below), whose sum is σ = 214119311064. Its totient is φ = 209920893000.

The previous prime is 212020102001. The next prime is 212020102033. The reversal of 212020102031 is 130201020212.

It is a happy number.

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 212020102031 - 2¹⁴ = 212020085647 is a prime.

It is a super-2 number, since 2×212020102031² (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 = 212020101997 and 212020102015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212020102033) 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, 1049604365 + ... + 1049604566.

It is an arithmetic number, because the mean of its divisors is an integer number (53529827766).

Almost surely, 2^212020102031 is an apocalyptic number.

212020102031 is a deficient number, since it is larger than the sum of its proper divisors (2099209033).

212020102031 is a wasteful number, since it uses less digits than its factorization.

212020102031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099209032.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 212020102031 its reverse (130201020212), we get a palindrome (342221122243).

The spelling of 212020102031 in words is "two hundred twelve billion, twenty million, one hundred two thousand, thirty-one".