1144503511 has 2 divisors, whose sum is σ = 1144503512. Its totient is φ = 1144503510.

The previous prime is 1144503509. The next prime is 1144503583. The reversal of 1144503511 is 1153054411.

It is a weak prime.

It is an emirp because it is prime and its reverse (1153054411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1144503511 - 2¹ = 1144503509 is a prime.

It is a super-4 number, since 4×1144503511⁴ (a number of 37 digits) contains 4444 as substring.

Together with 1144503509, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144503011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572251755 + 572251756.

It is an arithmetic number, because the mean of its divisors is an integer number (572251756).

Almost surely, 2^1144503511 is an apocalyptic number.

1144503511 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144503511 is an equidigital number, since it uses as much as digits as its factorization.

1144503511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1144503511 is about 33830.5115391417. The cubic root of 1144503511 is about 1046.0177232927.

Adding to 1144503511 its reverse (1153054411), we get a palindrome (2297557922).

The spelling of 1144503511 in words is "one billion, one hundred forty-four million, five hundred three thousand, five hundred eleven".