1020851043 has 8 divisors (see below), whose sum is σ = 1383448656. Its totient is φ = 669410400.

The previous prime is 1020851023. The next prime is 1020851059. The reversal of 1020851043 is 3401580201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1020851043 - 2¹⁷ = 1020719971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020851023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2789028 + ... + 2789393.

It is an arithmetic number, because the mean of its divisors is an integer number (172931082).

Almost surely, 2^1020851043 is an apocalyptic number.

1020851043 is a deficient number, since it is larger than the sum of its proper divisors (362597613).

1020851043 is an equidigital number, since it uses as much as digits as its factorization.

1020851043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5578485.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1020851043 is about 31950.7596623304. The cubic root of 1020851043 is about 1006.9025922603.

The spelling of 1020851043 in words is "one billion, twenty million, eight hundred fifty-one thousand, forty-three".