1111520512042 has 16 divisors (see below), whose sum is σ = 1674563470272. Its totient is φ = 553335071040.

The previous prime is 1111520511977. The next prime is 1111520512057. The reversal of 1111520512042 is 2402150251111.

It is a junction number, because it is equal to n+sod(n) for n = 1111520511998 and 1111520512016.

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, 340117 + ... + 1529287.

It is an arithmetic number, because the mean of its divisors is an integer number (104660216892).

Almost surely, 2^{1111520512042} is an apocalyptic number.

1111520512042 is a deficient number, since it is larger than the sum of its proper divisors (563042958230).

1111520512042 is a wasteful number, since it uses less digits than its factorization.

1111520512042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191213.

The product of its (nonzero) digits is 800, while the sum is 25.

Adding to 1111520512042 its reverse (2402150251111), we get a palindrome (3513670763153).

The spelling of 1111520512042 in words is "one trillion, one hundred eleven billion, five hundred twenty million, five hundred twelve thousand, forty-two".