1153320051 has 12 divisors (see below), whose sum is σ = 1665149208. Its totient is φ = 709735104.

The previous prime is 1153320041. The next prime is 1153320059. The reversal of 1153320051 is 1500233511.

It is not a de Polignac number, because 1153320051 - 2⁵ = 1153320019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1153320059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1136890 + ... + 1137903.

It is an arithmetic number, because the mean of its divisors is an integer number (138762434).

Almost surely, 2^1153320051 is an apocalyptic number.

1153320051 is a deficient number, since it is larger than the sum of its proper divisors (511829157).

1153320051 is a wasteful number, since it uses less digits than its factorization.

1153320051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274822 (or 2274809 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1153320051 is about 33960.5661171895. The cubic root of 1153320051 is about 1048.6968113579.

Adding to 1153320051 its reverse (1500233511), we get a palindrome (2653553562).

The spelling of 1153320051 in words is "one billion, one hundred fifty-three million, three hundred twenty thousand, fifty-one".