201211209253 has 2 divisors, whose sum is σ = 201211209254. Its totient is φ = 201211209252.

The previous prime is 201211209247. The next prime is 201211209257. The reversal of 201211209253 is 352902112102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132290783524 + 68920425729 = 363718^2 + 262527^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201211209253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201211209257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100605604626 + 100605604627.

It is an arithmetic number, because the mean of its divisors is an integer number (100605604627).

Almost surely, 2^201211209253 is an apocalyptic number.

It is an amenable number.

201211209253 is a deficient number, since it is larger than the sum of its proper divisors (1).

201211209253 is an equidigital number, since it uses as much as digits as its factorization.

201211209253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 201211209253 in words is "two hundred one billion, two hundred eleven million, two hundred nine thousand, two hundred fifty-three".