1131321102 has 32 divisors (see below), whose sum is σ = 2424840192. Its totient is φ = 350960544.

The previous prime is 1131321071. The next prime is 1131321127. The reversal of 1131321102 is 2011231311.

It is a happy number.

1131321102 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 105678 + ... + 115889.

It is an arithmetic number, because the mean of its divisors is an integer number (75776256).

Almost surely, 2^1131321102 is an apocalyptic number.

1131321102 is an abundant number, since it is smaller than the sum of its proper divisors (1293519090).

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

1131321102 is a wasteful number, since it uses less digits than its factorization.

1131321102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221632.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1131321102 is about 33635.1170950838. The cubic root of 1131321102 is about 1041.9861889581.

Adding to 1131321102 its reverse (2011231311), we get a palindrome (3142552413).

The spelling of 1131321102 in words is "one billion, one hundred thirty-one million, three hundred twenty-one thousand, one hundred two".