212020303031 has 2 divisors, whose sum is σ = 212020303032. Its totient is φ = 212020303030.

The previous prime is 212020303009. The next prime is 212020303067. The reversal of 212020303031 is 130303020212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212020303031 - 2²² = 212016108727 is a prime.

It is a super-2 number, since 2×212020303031² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212020303091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010151515 + 106010151516.

It is an arithmetic number, because the mean of its divisors is an integer number (106010151516).

Almost surely, 2^212020303031 is an apocalyptic number.

212020303031 is a deficient number, since it is larger than the sum of its proper divisors (1).

212020303031 is an equidigital number, since it uses as much as digits as its factorization.

212020303031 is an evil number, because the sum of its binary digits is even.

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

Adding to 212020303031 its reverse (130303020212), we get a palindrome (342323323243).

The spelling of 212020303031 in words is "two hundred twelve billion, twenty million, three hundred three thousand, thirty-one".