1023012003 has 32 divisors (see below), whose sum is σ = 1551029760. Its totient is φ = 594570240.

The previous prime is 1023011993. The next prime is 1023012007. The reversal of 1023012003 is 3002103201.

It is a happy number.

It is not a de Polignac number, because 1023012003 - 2⁵ = 1023011971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1023012003.

It is not an unprimeable number, because it can be changed into a prime (1023012007) 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 31 ways as a sum of consecutive naturals, for example, 259618 + ... + 263528.

It is an arithmetic number, because the mean of its divisors is an integer number (48469680).

Almost surely, 2^1023012003 is an apocalyptic number.

1023012003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1023012003 is a deficient number, since it is larger than the sum of its proper divisors (528017757).

1023012003 is a wasteful number, since it uses less digits than its factorization.

1023012003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4299.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1023012003 is about 31984.5588214063. The cubic root of 1023012003 is about 1007.6125694012.

Adding to 1023012003 its reverse (3002103201), we get a palindrome (4025115204).

The spelling of 1023012003 in words is "one billion, twenty-three million, twelve thousand, three".