1144023013 has 8 divisors (see below), whose sum is σ = 1364300928. Its totient is φ = 937956624.

The previous prime is 1144022987. The next prime is 1144023029. The reversal of 1144023013 is 3103204411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1144023013 - 2⁵ = 1144022981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144020013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3552706 + ... + 3553027.

It is an arithmetic number, because the mean of its divisors is an integer number (170537616).

Almost surely, 2^1144023013 is an apocalyptic number.

It is an amenable number.

1144023013 is a deficient number, since it is larger than the sum of its proper divisors (220277915).

1144023013 is an equidigital number, since it uses as much as digits as its factorization.

1144023013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7105763.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1144023013 is about 33823.4092456689. The cubic root of 1144023013 is about 1045.8713192632.

Adding to 1144023013 its reverse (3103204411), we get a palindrome (4247227424).

It can be divided in two parts, 11440 and 23013, that added together give a triangular number (34453 = T₂₆₂).

The spelling of 1144023013 in words is "one billion, one hundred forty-four million, twenty-three thousand, thirteen".