121763256343 has 16 divisors (see below), whose sum is σ = 124617056256. Its totient is φ = 118930708000.

The previous prime is 121763256337. The next prime is 121763256353. The reversal of 121763256343 is 343652367121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121763256343 is a prime.

It is a super-2 number, since 2×121763256343² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121763256343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121763256323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37452468 + ... + 37455718.

It is an arithmetic number, because the mean of its divisors is an integer number (7788566016).

Almost surely, 2^121763256343 is an apocalyptic number.

121763256343 is a deficient number, since it is larger than the sum of its proper divisors (2853799913).

121763256343 is a wasteful number, since it uses less digits than its factorization.

121763256343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6254.

The product of its digits is 544320, while the sum is 43.

The spelling of 121763256343 in words is "one hundred twenty-one billion, seven hundred sixty-three million, two hundred fifty-six thousand, three hundred forty-three".