1123514021 has 16 divisors (see below), whose sum is σ = 1321638528. Its totient is φ = 935020800.

The previous prime is 1123513987. The next prime is 1123514047. The reversal of 1123514021 is 1204153211.

It is not a de Polignac number, because 1123514021 - 2³⁰ = 49772197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1123513984 and 1123514002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123514081) 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, 51281 + ... + 69833.

It is an arithmetic number, because the mean of its divisors is an integer number (82602408).

Almost surely, 2^1123514021 is an apocalyptic number.

It is an amenable number.

1123514021 is a deficient number, since it is larger than the sum of its proper divisors (198124507).

1123514021 is a wasteful number, since it uses less digits than its factorization.

1123514021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18812.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1123514021 is about 33518.8606757449. The cubic root of 1123514021 is about 1039.5837896299.

Adding to 1123514021 its reverse (1204153211), we get a palindrome (2327667232).

The spelling of 1123514021 in words is "one billion, one hundred twenty-three million, five hundred fourteen thousand, twenty-one".