121380363 has 30 divisors (see below), whose sum is σ = 196364124. Its totient is φ = 74687184.

The previous prime is 121380331. The next prime is 121380397. The reversal of 121380363 is 363083121.

It is a happy number.

It is not a de Polignac number, because 121380363 - 2⁵ = 121380331 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (121380163) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 9256 + ... + 18122.

Almost surely, 2^121380363 is an apocalyptic number.

121380363 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121380363 is a deficient number, since it is larger than the sum of its proper divisors (74983761).

121380363 is an equidigital number, since it uses as much as digits as its factorization.

121380363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8905 (or 8883 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 121380363 is about 11017.2756614328. The cubic root of 121380363 is about 495.1264690627.

The spelling of 121380363 in words is "one hundred twenty-one million, three hundred eighty thousand, three hundred sixty-three".