1151323110 has 72 divisors (see below), whose sum is σ = 3482178336. Its totient is φ = 263158560.

The previous prime is 1151323099. The next prime is 1151323111. The reversal of 1151323110 is 113231511.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151323111) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 126126 + ... + 134945.

It is an arithmetic number, because the mean of its divisors is an integer number (48363588).

Almost surely, 2^1151323110 is an apocalyptic number.

1151323110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1151323110 is an abundant number, since it is smaller than the sum of its proper divisors (2330855226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1151323110 is a wasteful number, since it uses less digits than its factorization.

1151323110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261098 (or 261088 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 1151323110 is about 33931.1525003204. The cubic root of 1151323110 is about 1048.0911987482.

Adding to 1151323110 its reverse (113231511), we get a palindrome (1264554621).

The spelling of 1151323110 in words is "one billion, one hundred fifty-one million, three hundred twenty-three thousand, one hundred ten".