31210212053 has 2 divisors, whose sum is σ = 31210212054. Its totient is φ = 31210212052.

The previous prime is 31210212037. The next prime is 31210212073. The reversal of 31210212053 is 35021201213.

It is an a-pointer prime, because the next prime (31210212073) can be obtained adding 31210212053 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23914148164 + 7296063889 = 154642^2 + 85417^2 .

It is a cyclic number.

It is not a de Polignac number, because 31210212053 - 2⁴ = 31210212037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31210212073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15605106026 + 15605106027.

It is an arithmetic number, because the mean of its divisors is an integer number (15605106027).

Almost surely, 2^31210212053 is an apocalyptic number.

It is an amenable number.

31210212053 is a deficient number, since it is larger than the sum of its proper divisors (1).

31210212053 is an equidigital number, since it uses as much as digits as its factorization.

31210212053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 31210212053 its reverse (35021201213), we get a palindrome (66231413266).

The spelling of 31210212053 in words is "thirty-one billion, two hundred ten million, two hundred twelve thousand, fifty-three".