1121303442 has 32 divisors (see below), whose sum is σ = 2713744512. Its totient is φ = 301526784.

The previous prime is 1121303401. The next prime is 1121303453. The reversal of 1121303442 is 2443031211.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 784513 + ... + 785940.

It is an arithmetic number, because the mean of its divisors is an integer number (84804516).

Almost surely, 2^1121303442 is an apocalyptic number.

1121303442 is an abundant number, since it is smaller than the sum of its proper divisors (1592441070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121303442 is a wasteful number, since it uses less digits than its factorization.

1121303442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570482.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1121303442 is about 33485.8692884028. The cubic root of 1121303442 is about 1038.9015281705.

Adding to 1121303442 its reverse (2443031211), we get a palindrome (3564334653).

The spelling of 1121303442 in words is "one billion, one hundred twenty-one million, three hundred three thousand, four hundred forty-two".