1511020042 has 32 divisors (see below), whose sum is σ = 2683745280. Its totient is φ = 624378240.

The previous prime is 1511020019. The next prime is 1511020051. The reversal of 1511020042 is 2400201151.

It is a junction number, because it is equal to n+sod(n) for n = 1511019998 and 1511020025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113934 + ... + 126502.

It is an arithmetic number, because the mean of its divisors is an integer number (83867040).

Almost surely, 2^1511020042 is an apocalyptic number.

1511020042 is a deficient number, since it is larger than the sum of its proper divisors (1172725238).

1511020042 is a wasteful number, since it uses less digits than its factorization.

1511020042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12886.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1511020042 is about 38871.8412478750. The cubic root of 1511020042 is about 1147.5106941411.

Adding to 1511020042 its reverse (2400201151), we get a palindrome (3911221193).

The spelling of 1511020042 in words is "one billion, five hundred eleven million, twenty thousand, forty-two".