1023020123 has 8 divisors (see below), whose sum is σ = 1036573440. Its totient is φ = 1009555560.

The previous prime is 1023020107. The next prime is 1023020147. The reversal of 1023020123 is 3210203201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1023020123 - 2⁴ = 1023020107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1023020098 and 1023020107.

It is not an unprimeable number, because it can be changed into a prime (1023020183) 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 7 ways as a sum of consecutive naturals, for example, 1178 + ... + 45248.

It is an arithmetic number, because the mean of its divisors is an integer number (129571680).

Almost surely, 2^1023020123 is an apocalyptic number.

1023020123 is a deficient number, since it is larger than the sum of its proper divisors (13553317).

1023020123 is a wasteful number, since it uses less digits than its factorization.

1023020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44377.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1023020123 is about 31984.6857574058. The cubic root of 1023020123 is about 1007.6152353173.

Adding to 1023020123 its reverse (3210203201), we get a palindrome (4233223324).

The spelling of 1023020123 in words is "one billion, twenty-three million, twenty thousand, one hundred twenty-three".