1050807021 has 16 divisors (see below), whose sum is σ = 1532562240. Its totient is φ = 635137920.

The previous prime is 1050807013. The next prime is 1050807053. The reversal of 1050807021 is 1207080501.

It is not a de Polignac number, because 1050807021 - 2³ = 1050807013 is a prime.

It is a super-2 number, since 2×1050807021² = 2208390790765788882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1050806982 and 1050807000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1050807071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30376 + ... + 54993.

It is an arithmetic number, because the mean of its divisors is an integer number (95785140).

Almost surely, 2^1050807021 is an apocalyptic number.

1050807021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1050807021 is a deficient number, since it is larger than the sum of its proper divisors (481755219).

1050807021 is a wasteful number, since it uses less digits than its factorization.

1050807021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85756.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 1050807021 is about 32416.1537045961. The cubic root of 1050807021 is about 1016.6566879728.

Adding to 1050807021 its reverse (1207080501), we get a palindrome (2257887522).

It can be divided in two parts, 105080 and 7021, that added together give a triangular number (112101 = T₄₇₃).

The spelling of 1050807021 in words is "one billion, fifty million, eight hundred seven thousand, twenty-one".