1123031151 has 24 divisors (see below), whose sum is σ = 1803022416. Its totient is φ = 667779840.

The previous prime is 1123031149. The next prime is 1123031209. The reversal of 1123031151 is 1511303211.

It is not a de Polignac number, because 1123031151 - 2¹ = 1123031149 is a prime.

It is a super-2 number, since 2×1123031151² = 2522397932232769602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123031551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101770 + ... + 112263.

It is an arithmetic number, because the mean of its divisors is an integer number (75125934).

Almost surely, 2^1123031151 is an apocalyptic number.

1123031151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1123031151 is a deficient number, since it is larger than the sum of its proper divisors (679991265).

1123031151 is a wasteful number, since it uses less digits than its factorization.

1123031151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214103 (or 214100 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 1123031151 is about 33511.6569420254. The cubic root of 1123031151 is about 1039.4348356197.

Adding to 1123031151 its reverse (1511303211), we get a palindrome (2634334362).

The spelling of 1123031151 in words is "one billion, one hundred twenty-three million, thirty-one thousand, one hundred fifty-one".