210223215031 has 2 divisors, whose sum is σ = 210223215032. Its totient is φ = 210223215030.

The previous prime is 210223215017. The next prime is 210223215047. The reversal of 210223215031 is 130512322012.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210223215031 is a prime.

It is a super-2 number, since 2×210223215031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210223214993 and 210223215011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210223215931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105111607515 + 105111607516.

It is an arithmetic number, because the mean of its divisors is an integer number (105111607516).

Almost surely, 2^210223215031 is an apocalyptic number.

210223215031 is a deficient number, since it is larger than the sum of its proper divisors (1).

210223215031 is an equidigital number, since it uses as much as digits as its factorization.

210223215031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 210223215031 its reverse (130512322012), we get a palindrome (340735537043).

The spelling of 210223215031 in words is "two hundred ten billion, two hundred twenty-three million, two hundred fifteen thousand, thirty-one".