1101322131 has 48 divisors (see below), whose sum is σ = 1866564864. Its totient is φ = 565149312.

The previous prime is 1101322111. The next prime is 1101322147. The reversal of 1101322131 is 1312231011.

It is a happy number.

It is not a de Polignac number, because 1101322131 - 2¹¹ = 1101320083 is a prime.

It is a super-2 number, since 2×1101322131² = 2425820872460762322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1101322131.

It is not an unprimeable number, because it can be changed into a prime (1101322111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 127120 + ... + 135506.

It is an arithmetic number, because the mean of its divisors is an integer number (38886768).

Almost surely, 2^1101322131 is an apocalyptic number.

1101322131 is a deficient number, since it is larger than the sum of its proper divisors (765242733).

1101322131 is a wasteful number, since it uses less digits than its factorization.

1101322131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8460 (or 8447 counting only the distinct ones).

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

The square root of 1101322131 is about 33186.1737927107. The cubic root of 1101322131 is about 1032.6935285173.

Adding to 1101322131 its reverse (1312231011), we get a palindrome (2413553142).

The spelling of 1101322131 in words is "one billion, one hundred one million, three hundred twenty-two thousand, one hundred thirty-one".