2381656181223 has 32 divisors (see below), whose sum is σ = 3561446909952. Its totient is φ = 1402998537600.

The previous prime is 2381656181207. The next prime is 2381656181239. The reversal of 2381656181223 is 3221816561832.

It is an interprime number because it is at equal distance from previous prime (2381656181207) and next prime (2381656181239).

It is not a de Polignac number, because 2381656181223 - 2⁴ = 2381656181207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2381656181923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 225865 + ... + 2194157.

It is an arithmetic number, because the mean of its divisors is an integer number (111295215936).

Almost surely, 2^{2381656181223} is an apocalyptic number.

2381656181223 is a deficient number, since it is larger than the sum of its proper divisors (1179790728729).

2381656181223 is a wasteful number, since it uses less digits than its factorization.

2381656181223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969335.

The product of its digits is 829440, while the sum is 48.

The spelling of 2381656181223 in words is "two trillion, three hundred eighty-one billion, six hundred fifty-six million, one hundred eighty-one thousand, two hundred twenty-three".