121070111 has 2 divisors, whose sum is σ = 121070112. Its totient is φ = 121070110.

The previous prime is 121070087. The next prime is 121070119. The reversal of 121070111 is 111070121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121070111 - 2²² = 116875807 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121070119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60535055 + 60535056.

It is an arithmetic number, because the mean of its divisors is an integer number (60535056).

Almost surely, 2^121070111 is an apocalyptic number.

121070111 is a deficient number, since it is larger than the sum of its proper divisors (1).

121070111 is an equidigital number, since it uses as much as digits as its factorization.

121070111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14, while the sum is 14.

The square root of 121070111 is about 11003.1864021292. The cubic root of 121070111 is about 494.7042562205.

The spelling of 121070111 in words is "one hundred twenty-one million, seventy thousand, one hundred eleven".