121343142000303 has 12 divisors (see below), whose sum is σ = 176389818592728. Its totient is φ = 80380170496080.

The previous prime is 121343142000287. The next prime is 121343142000371. The reversal of 121343142000303 is 303000241343121.

It is a happy number.

121343142000303 is a `hidden beast` number, since 1 + 2 + 1 + 343 + 14 + 2 + 0 + 0 + 0 + 303 = 666.

It is not a de Polignac number, because 121343142000303 - 2⁴ = 121343142000287 is a prime.

It is a super-2 number, since 2×121343142000303² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121343142004303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42938123853 + ... + 42938126678.

It is an arithmetic number, because the mean of its divisors is an integer number (14699151549394).

Almost surely, 2^{121343142000303} is an apocalyptic number.

121343142000303 is a deficient number, since it is larger than the sum of its proper divisors (55046676592425).

121343142000303 is a wasteful number, since it uses less digits than its factorization.

121343142000303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85876250694 (or 85876250691 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 121343142000303 its reverse (303000241343121), we get a palindrome (424343383343424).

The spelling of 121343142000303 in words is "one hundred twenty-one trillion, three hundred forty-three billion, one hundred forty-two million, three hundred three", and thus it is an aban number.