212103131033 has 4 divisors (see below), whose sum is σ = 212124852660. Its totient is φ = 212081409408.

The previous prime is 212103131029. The next prime is 212103131041. The reversal of 212103131033 is 330131301212.

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

It can be written as a sum of positive squares in 2 ways, for example, as 120098288704 + 92004842329 = 346552^2 + 303323^2 .

It is a cyclic number.

It is not a de Polignac number, because 212103131033 - 2² = 212103131029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212103130996 and 212103131014.

It is not an unprimeable number, because it can be changed into a prime (212103131063) 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, 10846160 + ... + 10865697.

It is an arithmetic number, because the mean of its divisors is an integer number (53031213165).

Almost surely, 2^212103131033 is an apocalyptic number.

It is an amenable number.

212103131033 is a deficient number, since it is larger than the sum of its proper divisors (21721627).

212103131033 is an equidigital number, since it uses as much as digits as its factorization.

212103131033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21721626.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 212103131033 its reverse (330131301212), we get a palindrome (542234432245).

The spelling of 212103131033 in words is "two hundred twelve billion, one hundred three million, one hundred thirty-one thousand, thirty-three".