121038451 has 2 divisors, whose sum is σ = 121038452. Its totient is φ = 121038450.

The previous prime is 121038439. The next prime is 121038469. The reversal of 121038451 is 154830121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121038451 is a prime.

It is not a weakly prime, because it can be changed into another prime (121030451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60519225 + 60519226.

It is an arithmetic number, because the mean of its divisors is an integer number (60519226).

Almost surely, 2^121038451 is an apocalyptic number.

121038451 is a deficient number, since it is larger than the sum of its proper divisors (1).

121038451 is an equidigital number, since it uses as much as digits as its factorization.

121038451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 121038451 is about 11001.7476338989. The cubic root of 121038451 is about 494.6611305140.

Adding to 121038451 its reverse (154830121), we get a palindrome (275868572).

The spelling of 121038451 in words is "one hundred twenty-one million, thirty-eight thousand, four hundred fifty-one".