121120969 has 2 divisors, whose sum is σ = 121120970. Its totient is φ = 121120968.

The previous prime is 121120949. The next prime is 121121003. The reversal of 121120969 is 969021121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62015625 + 59105344 = 7875^2 + 7688^2 .

It is a cyclic number.

It is not a de Polignac number, because 121120969 - 2¹⁹ = 120596681 is a prime.

It is a super-2 number, since 2×121120969² = 29340578262997922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121120969.

It is not a weakly prime, because it can be changed into another prime (121120949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60560484 + 60560485.

It is an arithmetic number, because the mean of its divisors is an integer number (60560485).

Almost surely, 2^121120969 is an apocalyptic number.

It is an amenable number.

121120969 is a deficient number, since it is larger than the sum of its proper divisors (1).

121120969 is an equidigital number, since it uses as much as digits as its factorization.

121120969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 121120969 is about 11005.4972173001. The cubic root of 121120969 is about 494.7735167691.

The spelling of 121120969 in words is "one hundred twenty-one million, one hundred twenty thousand, nine hundred sixty-nine".