250511201231 has 2 divisors, whose sum is σ = 250511201232. Its totient is φ = 250511201230.

The previous prime is 250511201201. The next prime is 250511201233. The reversal of 250511201231 is 132102115052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 250511201231 - 2²² = 250507006927 is a prime.

It is a super-2 number, since 2×250511201231² (a number of 24 digits) contains 22 as substring.

Together with 250511201233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 250511201197 and 250511201206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250511201233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125255600615 + 125255600616.

It is an arithmetic number, because the mean of its divisors is an integer number (125255600616).

Almost surely, 2^250511201231 is an apocalyptic number.

250511201231 is a deficient number, since it is larger than the sum of its proper divisors (1).

250511201231 is an equidigital number, since it uses as much as digits as its factorization.

250511201231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 250511201231 its reverse (132102115052), we get a palindrome (382613316283).

The spelling of 250511201231 in words is "two hundred fifty billion, five hundred eleven million, two hundred one thousand, two hundred thirty-one".