2151371635223 has 4 divisors (see below), whose sum is σ = 2165619129648. Its totient is φ = 2137124140800.

The previous prime is 2151371635157. The next prime is 2151371635313. The reversal of 2151371635223 is 3225361731512.

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 2151371635223 - 2¹⁴ = 2151371618839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151371635823) 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, 7123746986 + ... + 7123747287.

It is an arithmetic number, because the mean of its divisors is an integer number (541404782412).

Almost surely, 2^{2151371635223} is an apocalyptic number.

2151371635223 is a deficient number, since it is larger than the sum of its proper divisors (14247494425).

2151371635223 is a wasteful number, since it uses less digits than its factorization.

2151371635223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14247494424.

The product of its digits is 226800, while the sum is 41.

The spelling of 2151371635223 in words is "two trillion, one hundred fifty-one billion, three hundred seventy-one million, six hundred thirty-five thousand, two hundred twenty-three".