1202021003 has 2 divisors, whose sum is σ = 1202021004. Its totient is φ = 1202021002.

The previous prime is 1202020969. The next prime is 1202021027. The reversal of 1202021003 is 3001202021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1202021003 is a prime.

It is not a weakly prime, because it can be changed into another prime (1202021053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601010501 + 601010502.

It is an arithmetic number, because the mean of its divisors is an integer number (601010502).

Almost surely, 2^1202021003 is an apocalyptic number.

1202021003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202021003 is an equidigital number, since it uses as much as digits as its factorization.

1202021003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1202021003 is about 34670.1745452774. The cubic root of 1202021003 is about 1063.2548001888.

Adding to 1202021003 its reverse (3001202021), we get a palindrome (4203223024).

The spelling of 1202021003 in words is "one billion, two hundred two million, twenty-one thousand, three".