1101123131 has 16 divisors (see below), whose sum is σ = 1198848000. Its totient is φ = 1007510400.

The previous prime is 1101123119. The next prime is 1101123151. The reversal of 1101123131 is 1313211011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1101123131 - 2¹⁰ = 1101122107 is a prime.

It is a super-2 number, since 2×1101123131² = 2424944299246486322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101123151) 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, 351251 + ... + 354371.

It is an arithmetic number, because the mean of its divisors is an integer number (74928000).

Almost surely, 2^1101123131 is an apocalyptic number.

1101123131 is a deficient number, since it is larger than the sum of its proper divisors (97724869).

1101123131 is a wasteful number, since it uses less digits than its factorization.

1101123131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3770.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1101123131 is about 33183.1754206857. The cubic root of 1101123131 is about 1032.6313249817.

Adding to 1101123131 its reverse (1313211011), we get a palindrome (2414334142).

The spelling of 1101123131 in words is "one billion, one hundred one million, one hundred twenty-three thousand, one hundred thirty-one".