121304146651 has 2 divisors, whose sum is σ = 121304146652. Its totient is φ = 121304146650.

The previous prime is 121304146637. The next prime is 121304146679. The reversal of 121304146651 is 156641403121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121304146651 - 2⁵ = 121304146619 is a prime.

It is not a weakly prime, because it can be changed into another prime (121304146631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60652073325 + 60652073326.

It is an arithmetic number, because the mean of its divisors is an integer number (60652073326).

Almost surely, 2^121304146651 is an apocalyptic number.

121304146651 is a deficient number, since it is larger than the sum of its proper divisors (1).

121304146651 is an equidigital number, since it uses as much as digits as its factorization.

121304146651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

Adding to 121304146651 its reverse (156641403121), we get a palindrome (277945549772).

The spelling of 121304146651 in words is "one hundred twenty-one billion, three hundred four million, one hundred forty-six thousand, six hundred fifty-one".