121415005331 has 4 divisors (see below), whose sum is σ = 122188349472. Its totient is φ = 120641661192.

The previous prime is 121415005291. The next prime is 121415005351. The reversal of 121415005331 is 133500514121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133500514121 = 13 ⋅10269270317.

It is a cyclic number.

It is not a de Polignac number, because 121415005331 - 2¹⁸ = 121414743187 is a prime.

It is a super-2 number, since 2×121415005331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121415005331.

It is not an unprimeable number, because it can be changed into a prime (121415005351) 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 3 ways as a sum of consecutive naturals, for example, 386671835 + ... + 386672148.

It is an arithmetic number, because the mean of its divisors is an integer number (30547087368).

Almost surely, 2^121415005331 is an apocalyptic number.

121415005331 is a deficient number, since it is larger than the sum of its proper divisors (773344141).

121415005331 is an equidigital number, since it uses as much as digits as its factorization.

121415005331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773344140.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 121415005331 its reverse (133500514121), we get a palindrome (254915519452).

The spelling of 121415005331 in words is "one hundred twenty-one billion, four hundred fifteen million, five thousand, three hundred thirty-one".