1153140321 has 16 divisors (see below), whose sum is σ = 1560278720. Its totient is φ = 757460160.

The previous prime is 1153140301. The next prime is 1153140361. The reversal of 1153140321 is 1230413511.

It is not a de Polignac number, because 1153140321 - 2⁶ = 1153140257 is a prime.

It is a super-3 number, since 3×1153140321³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1153140301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49446 + ... + 68928.

It is an arithmetic number, because the mean of its divisors is an integer number (97517420).

Almost surely, 2^1153140321 is an apocalyptic number.

It is an amenable number.

1153140321 is a deficient number, since it is larger than the sum of its proper divisors (407138399).

1153140321 is a wasteful number, since it uses less digits than its factorization.

1153140321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19776.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1153140321 is about 33957.9198567875. The cubic root of 1153140321 is about 1048.6423332537.

Adding to 1153140321 its reverse (1230413511), we get a palindrome (2383553832).

The spelling of 1153140321 in words is "one billion, one hundred fifty-three million, one hundred forty thousand, three hundred twenty-one".