1123054031 has 4 divisors (see below), whose sum is σ = 1225149864. Its totient is φ = 1020958200.

The previous prime is 1123054027. The next prime is 1123054043. The reversal of 1123054031 is 1304503211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1123054031 - 2² = 1123054027 is a prime.

It is a super-2 number, since 2×1123054031² = 2522500713090697922, 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 = 1123053994 and 1123054012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123054021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51047900 + ... + 51047921.

It is an arithmetic number, because the mean of its divisors is an integer number (306287466).

Almost surely, 2^1123054031 is an apocalyptic number.

1123054031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1123054031 is a deficient number, since it is larger than the sum of its proper divisors (102095833).

1123054031 is a wasteful number, since it uses less digits than its factorization.

1123054031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102095832.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1123054031 is about 33511.9983140367. The cubic root of 1123054031 is about 1039.4418945238.

Adding to 1123054031 its reverse (1304503211), we get a palindrome (2427557242).

The spelling of 1123054031 in words is "one billion, one hundred twenty-three million, fifty-four thousand, thirty-one".