121142315 has 16 divisors (see below), whose sum is σ = 166719168. Its totient is φ = 82778496.

The previous prime is 121142293. The next prime is 121142321. The reversal of 121142315 is 513241121.

It is a cyclic number.

It is not a de Polignac number, because 121142315 - 2¹² = 121138219 is a prime.

It is a super-3 number, since 3×121142315³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4349 + ... + 16161.

It is an arithmetic number, because the mean of its divisors is an integer number (10419948).

Almost surely, 2^121142315 is an apocalyptic number.

121142315 is a deficient number, since it is larger than the sum of its proper divisors (45576853).

121142315 is a wasteful number, since it uses less digits than its factorization.

121142315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12118.

The product of its digits is 240, while the sum is 20.

The square root of 121142315 is about 11006.4669626543. The cubic root of 121142315 is about 494.8025808670.

Adding to 121142315 its reverse (513241121), we get a palindrome (634383436).

The spelling of 121142315 in words is "one hundred twenty-one million, one hundred forty-two thousand, three hundred fifteen".