1103122031 has 12 divisors (see below), whose sum is σ = 1217032992. Its totient is φ = 999108000.

The previous prime is 1103121991. The next prime is 1103122037. The reversal of 1103122031 is 1302213011.

It is a de Polignac number, because none of the positive numbers 2^k-1103122031 is a prime.

It is a super-2 number, since 2×1103122031² = 2433756430555129922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103121997 and 1103122015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103122037) 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, 15971 + ... + 49611.

It is an arithmetic number, because the mean of its divisors is an integer number (101419416).

Almost surely, 2^1103122031 is an apocalyptic number.

1103122031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1103122031 is a deficient number, since it is larger than the sum of its proper divisors (113910961).

1103122031 is a wasteful number, since it uses less digits than its factorization.

1103122031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33934 (or 33923 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1103122031 is about 33213.2809430204. The cubic root of 1103122031 is about 1033.2558022186.

Adding to 1103122031 its reverse (1302213011), we get a palindrome (2405335042).

The spelling of 1103122031 in words is "one billion, one hundred three million, one hundred twenty-two thousand, thirty-one".