213311022031 has 2 divisors, whose sum is σ = 213311022032. Its totient is φ = 213311022030.

The previous prime is 213311022011. The next prime is 213311022059. The reversal of 213311022031 is 130220113312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213311022031 - 2¹¹ = 213311019983 is a prime.

It is a super-2 number, since 2×213311022031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213311022011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106655511015 + 106655511016.

It is an arithmetic number, because the mean of its divisors is an integer number (106655511016).

Almost surely, 2^213311022031 is an apocalyptic number.

213311022031 is a deficient number, since it is larger than the sum of its proper divisors (1).

213311022031 is an equidigital number, since it uses as much as digits as its factorization.

213311022031 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 19.

Adding to 213311022031 its reverse (130220113312), we get a palindrome (343531135343).

The spelling of 213311022031 in words is "two hundred thirteen billion, three hundred eleven million, twenty-two thousand, thirty-one".