953116121 has 2 divisors, whose sum is σ = 953116122. Its totient is φ = 953116120.

The previous prime is 953116103. The next prime is 953116123. The reversal of 953116121 is 121611359.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 725709721 + 227406400 = 26939^2 + 15080^2 .

It is an emirp because it is prime and its reverse (121611359) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 953116121 - 2²⁶ = 886007257 is a prime.

It is a super-2 number, since 2×953116121² = 1816860680220173282, which contains 22 as substring.

Together with 953116123, 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 (953116123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 476558060 + 476558061.

It is an arithmetic number, because the mean of its divisors is an integer number (476558061).

Almost surely, 2^953116121 is an apocalyptic number.

It is an amenable number.

953116121 is a deficient number, since it is larger than the sum of its proper divisors (1).

953116121 is an equidigital number, since it uses as much as digits as its factorization.

953116121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 29.

The square root of 953116121 is about 30872.5787876556. The cubic root of 953116121 is about 984.1212398396.

It can be divided in two parts, 9531 and 16121, that added together give a palindrome (25652).

The spelling of 953116121 in words is "nine hundred fifty-three million, one hundred sixteen thousand, one hundred twenty-one".