2159515102231 has 4 divisors (see below), whose sum is σ = 2179697486472. Its totient is φ = 2139332717992.

The previous prime is 2159515102187. The next prime is 2159515102259. The reversal of 2159515102231 is 1322015159512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2159515102231 - 2³¹ = 2157367618583 is a prime.

It is a super-2 number, since 2×2159515102231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159515102271) 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, 10091191960 + ... + 10091192173.

It is an arithmetic number, because the mean of its divisors is an integer number (544924371618).

Almost surely, 2^{2159515102231} is an apocalyptic number.

2159515102231 is a deficient number, since it is larger than the sum of its proper divisors (20182384241).

2159515102231 is a wasteful number, since it uses less digits than its factorization.

2159515102231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20182384240.

The product of its (nonzero) digits is 27000, while the sum is 37.

The spelling of 2159515102231 in words is "two trillion, one hundred fifty-nine billion, five hundred fifteen million, one hundred two thousand, two hundred thirty-one".