1020055351 has 4 divisors (see below), whose sum is σ = 1165777552. Its totient is φ = 874333152.

The previous prime is 1020055343. The next prime is 1020055357. The reversal of 1020055351 is 1535500201.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1020055351 - 2³ = 1020055343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020055357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72861090 + ... + 72861103.

It is an arithmetic number, because the mean of its divisors is an integer number (291444388).

Almost surely, 2^1020055351 is an apocalyptic number.

1020055351 is a deficient number, since it is larger than the sum of its proper divisors (145722201).

1020055351 is an equidigital number, since it uses as much as digits as its factorization.

1020055351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145722200.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 1020055351 is about 31938.3053871053. The cubic root of 1020055351 is about 1006.6409175881.

Adding to 1020055351 its reverse (1535500201), we get a palindrome (2555555552).

The spelling of 1020055351 in words is "one billion, twenty million, fifty-five thousand, three hundred fifty-one".