121113310331357 has 2 divisors, whose sum is σ = 121113310331358. Its totient is φ = 121113310331356.

The previous prime is 121113310331329. The next prime is 121113310331393. The reversal of 121113310331357 is 753133013311121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98489864730436 + 22623445600921 = 9924206^2 + 4756411^2 .

It is a cyclic number.

It is not a de Polignac number, because 121113310331357 - 2⁴⁰ = 120013798703581 is a prime.

It is a super-2 number, since 2×121113310331357² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121113310331957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60556655165678 + 60556655165679.

It is an arithmetic number, because the mean of its divisors is an integer number (60556655165679).

Almost surely, 2^{121113310331357} is an apocalyptic number.

It is an amenable number.

121113310331357 is a deficient number, since it is larger than the sum of its proper divisors (1).

121113310331357 is an equidigital number, since it uses as much as digits as its factorization.

121113310331357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17010, while the sum is 35.

Adding to 121113310331357 its reverse (753133013311121), we get a palindrome (874246323642478).

The spelling of 121113310331357 in words is "one hundred twenty-one trillion, one hundred thirteen billion, three hundred ten million, three hundred thirty-one thousand, three hundred fifty-seven".