1020265343 has 16 divisors (see below), whose sum is σ = 1075410336. Its totient is φ = 966712320.

The previous prime is 1020265339. The next prime is 1020265373. The reversal of 1020265343 is 3435620201.

It is not a de Polignac number, because 1020265343 - 2² = 1020265339 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 (1020265313) 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, 688163 + ... + 689643.

It is an arithmetic number, because the mean of its divisors is an integer number (67213146).

Almost surely, 2^1020265343 is an apocalyptic number.

1020265343 is a deficient number, since it is larger than the sum of its proper divisors (55144993).

1020265343 is a wasteful number, since it uses less digits than its factorization.

1020265343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1020265343 is about 31941.5926810170. The cubic root of 1020265343 is about 1006.7099896685.

Adding to 1020265343 its reverse (3435620201), we get a palindrome (4455885544).

The spelling of 1020265343 in words is "one billion, twenty million, two hundred sixty-five thousand, three hundred forty-three".