1641124231 has 2 divisors, whose sum is σ = 1641124232. Its totient is φ = 1641124230.

The previous prime is 1641124229. The next prime is 1641124241. The reversal of 1641124231 is 1324211461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1641124231 - 2¹ = 1641124229 is a prime.

It is a super-2 number, since 2×1641124231² = 5386577483150682722, which contains 22 as substring.

Together with 1641124229, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1641124196 and 1641124205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1641124201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820562115 + 820562116.

It is an arithmetic number, because the mean of its divisors is an integer number (820562116).

Almost surely, 2^1641124231 is an apocalyptic number.

1641124231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1641124231 is an equidigital number, since it uses as much as digits as its factorization.

1641124231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 25.

The square root of 1641124231 is about 40510.7915375644. The cubic root of 1641124231 is about 1179.5431131226.

Adding to 1641124231 its reverse (1324211461), we get a palindrome (2965335692).

The spelling of 1641124231 in words is "one billion, six hundred forty-one million, one hundred twenty-four thousand, two hundred thirty-one".