1020211003 has 4 divisors (see below), whose sum is σ = 1165955440. Its totient is φ = 874466568.

The previous prime is 1020210973. The next prime is 1020211013. The reversal of 1020211003 is 3001120201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3001120201 = 23 ⋅130483487.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020211003 is a prime.

It is a super-3 number, since 3×1020211003³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020211013) 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, 72872208 + ... + 72872221.

It is an arithmetic number, because the mean of its divisors is an integer number (291488860).

Almost surely, 2^1020211003 is an apocalyptic number.

1020211003 is a deficient number, since it is larger than the sum of its proper divisors (145744437).

1020211003 is an equidigital number, since it uses as much as digits as its factorization.

1020211003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145744436.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1020211003 is about 31940.7420546236. The cubic root of 1020211003 is about 1006.6921166736.

Adding to 1020211003 its reverse (3001120201), we get a palindrome (4021331204).

The spelling of 1020211003 in words is "one billion, twenty million, two hundred eleven thousand, three".