1113421522 has 4 divisors (see below), whose sum is σ = 1670132286. Its totient is φ = 556710760.

The previous prime is 1113421483. The next prime is 1113421523. The reversal of 1113421522 is 2251243111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2251243111 = 13 ⋅173172547.

It can be written as a sum of positive squares in only one way, i.e., 840478081 + 272943441 = 28991^2 + 16521^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1113421493 and 1113421502.

It is not an unprimeable number, because it can be changed into a prime (1113421523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278355379 + ... + 278355382.

Almost surely, 2^1113421522 is an apocalyptic number.

1113421522 is a deficient number, since it is larger than the sum of its proper divisors (556710764).

1113421522 is an equidigital number, since it uses as much as digits as its factorization.

1113421522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556710763.

The product of its digits is 480, while the sum is 22.

The square root of 1113421522 is about 33367.9714996282. The cubic root of 1113421522 is about 1036.4615700148.

Adding to 1113421522 its reverse (2251243111), we get a palindrome (3364664633).

The spelling of 1113421522 in words is "one billion, one hundred thirteen million, four hundred twenty-one thousand, five hundred twenty-two".