121013311 has 2 divisors, whose sum is σ = 121013312. Its totient is φ = 121013310.

The previous prime is 121013303. The next prime is 121013351. The reversal of 121013311 is 113310121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121013311 - 2³ = 121013303 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121013291 and 121013300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121013351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506655 + 60506656.

It is an arithmetic number, because the mean of its divisors is an integer number (60506656).

Almost surely, 2^121013311 is an apocalyptic number.

121013311 is a deficient number, since it is larger than the sum of its proper divisors (1).

121013311 is an equidigital number, since it uses as much as digits as its factorization.

121013311 is an odious number, because the sum of its binary digits is odd.

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

The square root of 121013311 is about 11000.6050288155. The cubic root of 121013311 is about 494.6268806764.

Adding to 121013311 its reverse (113310121), we get a palindrome (234323432).

The spelling of 121013311 in words is "one hundred twenty-one million, thirteen thousand, three hundred eleven".