121371315 has 32 divisors (see below), whose sum is σ = 211680000. Its totient is φ = 59024256.

The previous prime is 121371287. The next prime is 121371317. The reversal of 121371315 is 513173121.

It is a happy number.

It is not a de Polignac number, because 121371315 - 2⁶ = 121371251 is a prime.

It is a super-2 number, since 2×121371315² = 29461992209658450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121371317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12436 + ... + 19934.

It is an arithmetic number, because the mean of its divisors is an integer number (6615000).

Almost surely, 2^121371315 is an apocalyptic number.

121371315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121371315 is a deficient number, since it is larger than the sum of its proper divisors (90308685).

121371315 is a wasteful number, since it uses less digits than its factorization.

121371315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7603.

The product of its digits is 630, while the sum is 24.

The square root of 121371315 is about 11016.8650259500. The cubic root of 121371315 is about 495.1141660962.

The spelling of 121371315 in words is "one hundred twenty-one million, three hundred seventy-one thousand, three hundred fifteen".