1020010001203 has 2 divisors, whose sum is σ = 1020010001204. Its totient is φ = 1020010001202.

The previous prime is 1020010001041. The next prime is 1020010001207. The reversal of 1020010001203 is 3021000100201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1020010001203 - 2²⁵ = 1019976446771 is a prime.

It is a super-2 number, since 2×1020010001203² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1020010001203.

It is not a weakly prime, because it can be changed into another prime (1020010001207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510005000601 + 510005000602.

It is an arithmetic number, because the mean of its divisors is an integer number (510005000602).

Almost surely, 2^{1020010001203} is an apocalyptic number.

1020010001203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020010001203 is an equidigital number, since it uses as much as digits as its factorization.

1020010001203 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1020010001203 its reverse (3021000100201), we get a palindrome (4041010101404).

The spelling of 1020010001203 in words is "one trillion, twenty billion, ten million, one thousand, two hundred three".