121201031351 has 2 divisors, whose sum is σ = 121201031352. Its totient is φ = 121201031350.

The previous prime is 121201031323. The next prime is 121201031377. The reversal of 121201031351 is 153130102121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121201031351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121201031051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60600515675 + 60600515676.

It is an arithmetic number, because the mean of its divisors is an integer number (60600515676).

Almost surely, 2^121201031351 is an apocalyptic number.

121201031351 is a deficient number, since it is larger than the sum of its proper divisors (1).

121201031351 is an equidigital number, since it uses as much as digits as its factorization.

121201031351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 121201031351 its reverse (153130102121), we get a palindrome (274331133472).

The spelling of 121201031351 in words is "one hundred twenty-one billion, two hundred one million, thirty-one thousand, three hundred fifty-one".