1020302623 has 4 divisors (see below), whose sum is σ = 1020419928. Its totient is φ = 1020185320.

The previous prime is 1020302587. The next prime is 1020302669. The reversal of 1020302623 is 3262030201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020302623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020302623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020302683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44461 + ... + 63382.

It is an arithmetic number, because the mean of its divisors is an integer number (255104982).

Almost surely, 2^1020302623 is an apocalyptic number.

1020302623 is a deficient number, since it is larger than the sum of its proper divisors (117305).

1020302623 is an equidigital number, since it uses as much as digits as its factorization.

1020302623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117304.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1020302623 is about 31942.1762408262. The cubic root of 1020302623 is about 1006.7222510839.

Adding to 1020302623 its reverse (3262030201), we get a palindrome (4282332824).

It can be divided in two parts, 102030 and 2623, that added together give a triangular number (104653 = T₄₅₇).

The spelling of 1020302623 in words is "one billion, twenty million, three hundred two thousand, six hundred twenty-three".