121130311 has 2 divisors, whose sum is σ = 121130312. Its totient is φ = 121130310.

The previous prime is 121130309. The next prime is 121130371. The reversal of 121130311 is 113031121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121130311 - 2¹ = 121130309 is a prime.

Together with 121130309, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 121130291 and 121130300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121130371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60565155 + 60565156.

It is an arithmetic number, because the mean of its divisors is an integer number (60565156).

Almost surely, 2^121130311 is an apocalyptic number.

121130311 is a deficient number, since it is larger than the sum of its proper divisors (1).

121130311 is an equidigital number, since it uses as much as digits as its factorization.

121130311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 121130311 is about 11005.9216333754. The cubic root of 121130311 is about 494.7862369870.

Adding to 121130311 its reverse (113031121), we get a palindrome (234161432).

The spelling of 121130311 in words is "one hundred twenty-one million, one hundred thirty thousand, three hundred eleven".