1020022123 has 4 divisors (see below), whose sum is σ = 1020090240. Its totient is φ = 1019954008.

The previous prime is 1020022121. The next prime is 1020022141. The reversal of 1020022123 is 3212200201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1020022123 - 2¹ = 1020022121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020022121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 715 + ... + 45172.

It is an arithmetic number, because the mean of its divisors is an integer number (255022560).

Almost surely, 2^1020022123 is an apocalyptic number.

1020022123 is a deficient number, since it is larger than the sum of its proper divisors (68117).

1020022123 is an equidigital number, since it uses as much as digits as its factorization.

1020022123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68116.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1020022123 is about 31937.7851924644. The cubic root of 1020022123 is about 1006.6299871265.

Adding to 1020022123 its reverse (3212200201), we get a palindrome (4232222324).

It can be divided in two parts, 10200 and 22123, that added together give a palindrome (32323).

The spelling of 1020022123 in words is "one billion, twenty million, twenty-two thousand, one hundred twenty-three".