1121420356742 has 16 divisors (see below), whose sum is σ = 1923516782880. Its totient is φ = 480338252928.

The previous prime is 1121420356711. The next prime is 1121420356751. The reversal of 1121420356742 is 2476530241211.

It is a junction number, because it is equal to n+sod(n) for n = 1121420356696 and 1121420356705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22513517 + ... + 22563272.

It is an arithmetic number, because the mean of its divisors is an integer number (120219798930).

Almost surely, 2^{1121420356742} is an apocalyptic number.

1121420356742 is a deficient number, since it is larger than the sum of its proper divisors (802096426138).

1121420356742 is a wasteful number, since it uses less digits than its factorization.

1121420356742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45078575.

The product of its (nonzero) digits is 80640, while the sum is 38.

Adding to 1121420356742 its reverse (2476530241211), we get a palindrome (3597950597953).

The spelling of 1121420356742 in words is "one trillion, one hundred twenty-one billion, four hundred twenty million, three hundred fifty-six thousand, seven hundred forty-two".