211323525157 has 2 divisors, whose sum is σ = 211323525158. Its totient is φ = 211323525156.

The previous prime is 211323525107. The next prime is 211323525169. The reversal of 211323525157 is 751525323112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161946685476 + 49376839681 = 402426^2 + 222209^2 .

It is a cyclic number.

It is not a de Polignac number, because 211323525157 - 2³¹ = 209176041509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211323525107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105661762578 + 105661762579.

It is an arithmetic number, because the mean of its divisors is an integer number (105661762579).

Almost surely, 2^211323525157 is an apocalyptic number.

It is an amenable number.

211323525157 is a deficient number, since it is larger than the sum of its proper divisors (1).

211323525157 is an equidigital number, since it uses as much as digits as its factorization.

211323525157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63000, while the sum is 37.

Adding to 211323525157 its reverse (751525323112), we get a palindrome (962848848269).

The spelling of 211323525157 in words is "two hundred eleven billion, three hundred twenty-three million, five hundred twenty-five thousand, one hundred fifty-seven".