1121200030042 has 4 divisors (see below), whose sum is σ = 1681800045066. Its totient is φ = 560600015020.

The previous prime is 1121200030037. The next prime is 1121200030057. The reversal of 1121200030042 is 2400300021211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 875046122721 + 246153907321 = 935439^2 + 496139^2 .

It is a super-3 number, since 3×1121200030042³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121200029998 and 1121200030025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280300007509 + ... + 280300007512.

Almost surely, 2^{1121200030042} is an apocalyptic number.

1121200030042 is a deficient number, since it is larger than the sum of its proper divisors (560600015024).

1121200030042 is an equidigital number, since it uses as much as digits as its factorization.

1121200030042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560600015023.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1121200030042 its reverse (2400300021211), we get a palindrome (3521500051253).

The spelling of 1121200030042 in words is "one trillion, one hundred twenty-one billion, two hundred million, thirty thousand, forty-two".