121380036 has 12 divisors (see below), whose sum is σ = 283220112. Its totient is φ = 40460008.

The previous prime is 121380029. The next prime is 121380043. The reversal of 121380036 is 630083121.

It is an interprime number because it is at equal distance from previous prime (121380029) and next prime (121380043).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×121380036² = 29466226278722592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121379988 and 121380015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5057490 + ... + 5057513.

It is an arithmetic number, because the mean of its divisors is an integer number (23601676).

Almost surely, 2^121380036 is an apocalyptic number.

It is an amenable number.

121380036 is an abundant number, since it is smaller than the sum of its proper divisors (161840076).

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

121380036 is a wasteful number, since it uses less digits than its factorization.

121380036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10115010 (or 10115008 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 121380036 is about 11017.2608210934. The cubic root of 121380036 is about 495.1260244370.

The spelling of 121380036 in words is "one hundred twenty-one million, three hundred eighty thousand, thirty-six".