1121031442 has 8 divisors (see below), whose sum is σ = 1780461756. Its totient is φ = 527544192.

The previous prime is 1121031433. The next prime is 1121031463. The reversal of 1121031442 is 2441301211.

It can be written as a sum of positive squares in 2 ways, for example, as 919363041 + 201668401 = 30321^2 + 14201^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1121031442² = 2513422987905198728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16485723 + ... + 16485790.

Almost surely, 2^1121031442 is an apocalyptic number.

1121031442 is a deficient number, since it is larger than the sum of its proper divisors (659430314).

1121031442 is a wasteful number, since it uses less digits than its factorization.

1121031442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32971532.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1121031442 is about 33481.8076274266. The cubic root of 1121031442 is about 1038.8175175874.

Adding to 1121031442 its reverse (2441301211), we get a palindrome (3562332653).

The spelling of 1121031442 in words is "one billion, one hundred twenty-one million, thirty-one thousand, four hundred forty-two".