121711231351 has 2 divisors, whose sum is σ = 121711231352. Its totient is φ = 121711231350.

The previous prime is 121711231337. The next prime is 121711231357. The reversal of 121711231351 is 153132117121.

It is a strong prime.

It is an emirp because it is prime and its reverse (153132117121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121711231351 - 2⁷ = 121711231223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121711231357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60855615675 + 60855615676.

It is an arithmetic number, because the mean of its divisors is an integer number (60855615676).

Almost surely, 2^121711231351 is an apocalyptic number.

121711231351 is a deficient number, since it is larger than the sum of its proper divisors (1).

121711231351 is an equidigital number, since it uses as much as digits as its factorization.

121711231351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260, while the sum is 28.

Adding to 121711231351 its reverse (153132117121), we get a palindrome (274843348472).

The spelling of 121711231351 in words is "one hundred twenty-one billion, seven hundred eleven million, two hundred thirty-one thousand, three hundred fifty-one".