121353412 has 36 divisors (see below), whose sum is σ = 227836980. Its totient is φ = 56541184.

The previous prime is 121353409. The next prime is 121353443. The reversal of 121353412 is 214353121.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 14561856 + 106791556 = 3816^2 + 10334^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130164 + ... + 131092.

It is an arithmetic number, because the mean of its divisors is an integer number (6328805).

Almost surely, 2^121353412 is an apocalyptic number.

It is an amenable number.

121353412 is a deficient number, since it is larger than the sum of its proper divisors (106483568).

121353412 is a wasteful number, since it uses less digits than its factorization.

121353412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080 (or 1061 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 121353412 is about 11016.0524690108. The cubic root of 121353412 is about 495.0898207919.

The spelling of 121353412 in words is "one hundred twenty-one million, three hundred fifty-three thousand, four hundred twelve".