1140120305 has 16 divisors (see below), whose sum is σ = 1375199424. Its totient is φ = 907408320.

The previous prime is 1140120299. The next prime is 1140120353. The reversal of 1140120305 is 5030210411.

It is not a de Polignac number, because 1140120305 - 2²⁰ = 1139071729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1211135 + ... + 1212075.

It is an arithmetic number, because the mean of its divisors is an integer number (85949964).

Almost surely, 2^1140120305 is an apocalyptic number.

It is an amenable number.

1140120305 is a deficient number, since it is larger than the sum of its proper divisors (235079119).

1140120305 is an equidigital number, since it uses as much as digits as its factorization.

1140120305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1140120305 is about 33765.6675485618. The cubic root of 1140120305 is about 1044.6806728653.

Adding to 1140120305 its reverse (5030210411), we get a palindrome (6170330716).

The spelling of 1140120305 in words is "one billion, one hundred forty million, one hundred twenty thousand, three hundred five".