121440611 has 2 divisors, whose sum is σ = 121440612. Its totient is φ = 121440610.

The previous prime is 121440607. The next prime is 121440659. The reversal of 121440611 is 116044121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121440611 - 2² = 121440607 is a prime.

It is not a weakly prime, because it can be changed into another prime (121440511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60720305 + 60720306.

It is an arithmetic number, because the mean of its divisors is an integer number (60720306).

Almost surely, 2^121440611 is an apocalyptic number.

121440611 is a deficient number, since it is larger than the sum of its proper divisors (1).

121440611 is an equidigital number, since it uses as much as digits as its factorization.

121440611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 121440611 is about 11020.0095734986. The cubic root of 121440611 is about 495.2083753519.

Adding to 121440611 its reverse (116044121), we get a palindrome (237484732).

The spelling of 121440611 in words is "one hundred twenty-one million, four hundred forty thousand, six hundred eleven".