121363787363121 has 16 divisors (see below), whose sum is σ = 179799875838720. Its totient is φ = 80908439023440.

The previous prime is 121363787363113. The next prime is 121363787363131.

121363787363121 is a `hidden beast` number, since 1 + 2 + 136 + 378 + 73 + 63 + 12 + 1 = 666.

121363787363121 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 121363787363121 - 2³ = 121363787363113 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (121363787363131) 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, 17939970 + ... + 23760683.

It is an arithmetic number, because the mean of its divisors is an integer number (11237492239920).

Almost surely, 2^{121363787363121} is an apocalyptic number.

It is an amenable number.

121363787363121 is a deficient number, since it is larger than the sum of its proper divisors (58436088475599).

121363787363121 is a wasteful number, since it uses less digits than its factorization.

121363787363121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41808453 (or 41808447 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The spelling of 121363787363121 in words is "one hundred twenty-one trillion, three hundred sixty-three billion, seven hundred eighty-seven million, three hundred sixty-three thousand, one hundred twenty-one".