2142515303281 has 4 divisors (see below), whose sum is σ = 2158870382064. Its totient is φ = 2126160224500.

The previous prime is 2142515303237. The next prime is 2142515303317. The reversal of 2142515303281 is 1823035152412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2142515303281 - 2²⁹ = 2141978432369 is a prime.

It is a super-2 number, since 2×2142515303281² (a number of 25 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 2142515303281.

It is not an unprimeable number, because it can be changed into a prime (2142515303221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8177539195 + ... + 8177539456.

It is an arithmetic number, because the mean of its divisors is an integer number (539717595516).

Almost surely, 2^{2142515303281} is an apocalyptic number.

It is an amenable number.

2142515303281 is a deficient number, since it is larger than the sum of its proper divisors (16355078783).

2142515303281 is a wasteful number, since it uses less digits than its factorization.

2142515303281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16355078782.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 2142515303281 in words is "two trillion, one hundred forty-two billion, five hundred fifteen million, three hundred three thousand, two hundred eighty-one".