121311352 has 16 divisors (see below), whose sum is σ = 239430600. Its totient is φ = 57463200.

The previous prime is 121311349. The next prime is 121311413. The reversal of 121311352 is 253113121.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

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, 398899 + ... + 399202.

Almost surely, 2^121311352 is an apocalyptic number.

It is an amenable number.

121311352 is a deficient number, since it is larger than the sum of its proper divisors (118119248).

121311352 is a wasteful number, since it uses less digits than its factorization.

121311352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798126 (or 798122 counting only the distinct ones).

The product of its digits is 180, while the sum is 19.

The square root of 121311352 is about 11014.1432712672. The cubic root of 121311352 is about 495.0326162911.

Adding to 121311352 its reverse (253113121), we get a palindrome (374424473).

The spelling of 121311352 in words is "one hundred twenty-one million, three hundred eleven thousand, three hundred fifty-two".