2151242421513 has 8 divisors (see below), whose sum is σ = 2960849784576. Its totient is φ = 1387898336400.

The previous prime is 2151242421421. The next prime is 2151242421547. The reversal of 2151242421513 is 3151242421512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2151242421513 - 2²⁰ = 2151241372937 is a prime.

It is a super-3 number, since 3×2151242421513³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2151242421563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11565819378 + ... + 11565819563.

It is an arithmetic number, because the mean of its divisors is an integer number (370106223072).

Almost surely, 2^{2151242421513} is an apocalyptic number.

It is an amenable number.

2151242421513 is a deficient number, since it is larger than the sum of its proper divisors (809607363063).

2151242421513 is a wasteful number, since it uses less digits than its factorization.

2151242421513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23131638975.

The product of its digits is 19200, while the sum is 33.

Subtracting 2151242421513 from its reverse (3151242421512), we obtain a palindrome (999999999999).

The spelling of 2151242421513 in words is "two trillion, one hundred fifty-one billion, two hundred forty-two million, four hundred twenty-one thousand, five hundred thirteen".