1121232123 has 24 divisors (see below), whose sum is σ = 1859782080. Its totient is φ = 643768560.

The previous prime is 1121232121. The next prime is 1121232131. The reversal of 1121232123 is 3212321211.

1121232123 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1121232123 - 2¹ = 1121232121 is a prime.

It is a super-2 number, since 2×1121232123² = 2514322947294174258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121232096 and 1121232105.

It is not an unprimeable number, because it can be changed into a prime (1121232121) 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, 296161 + ... + 299922.

It is an arithmetic number, because the mean of its divisors is an integer number (77490920).

Almost surely, 2^1121232123 is an apocalyptic number.

1121232123 is a deficient number, since it is larger than the sum of its proper divisors (738549957).

1121232123 is a wasteful number, since it uses less digits than its factorization.

1121232123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596119 (or 596116 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1121232123 is about 33484.8043595897. The cubic root of 1121232123 is about 1038.8795017245.

Adding to 1121232123 its reverse (3212321211), we get a palindrome (4333553334).

The spelling of 1121232123 in words is "one billion, one hundred twenty-one million, two hundred thirty-two thousand, one hundred twenty-three".