1140232013 has 2 divisors, whose sum is σ = 1140232014. Its totient is φ = 1140232012.

The previous prime is 1140231959. The next prime is 1140232031. The reversal of 1140232013 is 3102320411.

Together with next prime (1140232031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 586947529 + 553284484 = 24227^2 + 23522^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140232013 - 2¹⁰ = 1140230989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1140231982 and 1140232000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1140232213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570116006 + 570116007.

It is an arithmetic number, because the mean of its divisors is an integer number (570116007).

Almost surely, 2^1140232013 is an apocalyptic number.

It is an amenable number.

1140232013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140232013 is an equidigital number, since it uses as much as digits as its factorization.

1140232013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1140232013 is about 33767.3216734760. The cubic root of 1140232013 is about 1044.7147907202.

Adding to 1140232013 its reverse (3102320411), we get a palindrome (4242552424).

The spelling of 1140232013 in words is "one billion, one hundred forty million, two hundred thirty-two thousand, thirteen".