1123015634042 has 4 divisors (see below), whose sum is σ = 1684523451066. Its totient is φ = 561507817020.

The previous prime is 1123015634029. The next prime is 1123015634071. The reversal of 1123015634042 is 2404365103211.

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., 791528723041 + 331486911001 = 889679^2 + 575749^2 .

It is a super-2 number, since 2×1123015634042² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280753908509 + ... + 280753908512.

Almost surely, 2^{1123015634042} is an apocalyptic number.

1123015634042 is a deficient number, since it is larger than the sum of its proper divisors (561507817024).

1123015634042 is an equidigital number, since it uses as much as digits as its factorization.

1123015634042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561507817023.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 1123015634042 in words is "one trillion, one hundred twenty-three billion, fifteen million, six hundred thirty-four thousand, forty-two".