1051051042 has 4 divisors (see below), whose sum is σ = 1576576566. Its totient is φ = 525525520.

The previous prime is 1051051009. The next prime is 1051051123. The reversal of 1051051042 is 2401501501.

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., 1049176881 + 1874161 = 32391^2 + 1369^2 .

It is a super-2 number, since 2×1051051042² = 2209416585778571528, which 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, 262762759 + ... + 262762762.

Almost surely, 2^1051051042 is an apocalyptic number.

1051051042 is a deficient number, since it is larger than the sum of its proper divisors (525525524).

1051051042 is an equidigital number, since it uses as much as digits as its factorization.

1051051042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525525523.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1051051042 is about 32419.9173657183. The cubic root of 1051051042 is about 1016.7353787236.

Adding to 1051051042 its reverse (2401501501), we get a palindrome (3452552543).

The spelling of 1051051042 in words is "one billion, fifty-one million, fifty-one thousand, forty-two".