2138032231 has 2 divisors, whose sum is σ = 2138032232. Its totient is φ = 2138032230.

The previous prime is 2138032219. The next prime is 2138032261. The reversal of 2138032231 is 1322308312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2138032231 - 2¹¹ = 2138030183 is a prime.

It is a super-2 number, since 2×2138032231² = 9142363641589674722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2138032196 and 2138032205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2138032201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1069016115 + 1069016116.

It is an arithmetic number, because the mean of its divisors is an integer number (1069016116).

Almost surely, 2^2138032231 is an apocalyptic number.

2138032231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2138032231 is an equidigital number, since it uses as much as digits as its factorization.

2138032231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2138032231 is about 46238.8606152877. The cubic root of 2138032231 is about 1288.2636396830.

The spelling of 2138032231 in words is "two billion, one hundred thirty-eight million, thirty-two thousand, two hundred thirty-one".