121082318351 has 2 divisors, whose sum is σ = 121082318352. Its totient is φ = 121082318350.

The previous prime is 121082318303. The next prime is 121082318359. The reversal of 121082318351 is 153813280121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121082318351 is a prime.

It is a super-2 number, since 2×121082318351² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121082318359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60541159175 + 60541159176.

It is an arithmetic number, because the mean of its divisors is an integer number (60541159176).

Almost surely, 2^121082318351 is an apocalyptic number.

121082318351 is a deficient number, since it is larger than the sum of its proper divisors (1).

121082318351 is an equidigital number, since it uses as much as digits as its factorization.

121082318351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 35.

Adding to 121082318351 its reverse (153813280121), we get a palindrome (274895598472).

The spelling of 121082318351 in words is "one hundred twenty-one billion, eighty-two million, three hundred eighteen thousand, three hundred fifty-one".