2145326652231 has 16 divisors (see below), whose sum is σ = 3269129385984. Its totient is φ = 1225878368544.

The previous prime is 2145326652221. The next prime is 2145326652253. The reversal of 2145326652231 is 1322566235412.

It is not a de Polignac number, because 2145326652231 - 2⁹ = 2145326651719 is a prime.

It is a super-2 number, since 2×2145326652231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145326652221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262641 + ... + 2087973.

It is an arithmetic number, because the mean of its divisors is an integer number (204320586624).

Almost surely, 2^{2145326652231} is an apocalyptic number.

2145326652231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2145326652231 is a deficient number, since it is larger than the sum of its proper divisors (1123802733753).

2145326652231 is a wasteful number, since it uses less digits than its factorization.

2145326652231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881310.

The product of its digits is 518400, while the sum is 42.

The spelling of 2145326652231 in words is "two trillion, one hundred forty-five billion, three hundred twenty-six million, six hundred fifty-two thousand, two hundred thirty-one".