1020210003 has 12 divisors (see below), whose sum is σ = 1483528800. Its totient is φ = 675574416.

The previous prime is 1020209987. The next prime is 1020210019. The reversal of 1020210003 is 3000120201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1020209987) and next prime (1020210019).

It is not a de Polignac number, because 1020210003 - 2⁴ = 1020209987 is a prime.

It is a super-3 number, since 3×1020210003³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1020214003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 379051 + ... + 381732.

It is an arithmetic number, because the mean of its divisors is an integer number (123627400).

Almost surely, 2^1020210003 is an apocalyptic number.

1020210003 is a deficient number, since it is larger than the sum of its proper divisors (463318797).

1020210003 is a wasteful number, since it uses less digits than its factorization.

1020210003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760938 (or 760935 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1020210003 is about 31940.7264006315. The cubic root of 1020210003 is about 1006.6917877571.

Adding to 1020210003 its reverse (3000120201), we get a palindrome (4020330204).

The spelling of 1020210003 in words is "one billion, twenty million, two hundred ten thousand, three".