121363356345 has 96 divisors (see below), whose sum is σ = 244492286976. Its totient is φ = 50320533120.

The previous prime is 121363356319. The next prime is 121363356347. The reversal of 121363356345 is 543653363121.

It is not a de Polignac number, because 121363356345 - 2⁶ = 121363356281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121363356297 and 121363356306.

It is not an unprimeable number, because it can be changed into a prime (121363356347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5617534 + ... + 5639096.

It is an arithmetic number, because the mean of its divisors is an integer number (2546794656).

Almost surely, 2^121363356345 is an apocalyptic number.

121363356345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121363356345 is an abundant number, since it is smaller than the sum of its proper divisors (123128930631).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121363356345 is a wasteful number, since it uses less digits than its factorization.

121363356345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22043 (or 22032 counting only the distinct ones).

The product of its digits is 583200, while the sum is 42.

The spelling of 121363356345 in words is "one hundred twenty-one billion, three hundred sixty-three million, three hundred fifty-six thousand, three hundred forty-five".