117211051 has 2 divisors, whose sum is σ = 117211052. Its totient is φ = 117211050.

The previous prime is 117211049. The next prime is 117211103. The reversal of 117211051 is 150112711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117211051 - 2¹ = 117211049 is a prime.

Together with 117211049, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (117211351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58605525 + 58605526.

It is an arithmetic number, because the mean of its divisors is an integer number (58605526).

Almost surely, 2^117211051 is an apocalyptic number.

117211051 is a deficient number, since it is larger than the sum of its proper divisors (1).

117211051 is an equidigital number, since it uses as much as digits as its factorization.

117211051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70, while the sum is 19.

The square root of 117211051 is about 10826.4052667541. The cubic root of 117211051 is about 489.3912348340.

Adding to 117211051 its reverse (150112711), we get a palindrome (267323762).

The spelling of 117211051 in words is "one hundred seventeen million, two hundred eleven thousand, fifty-one".