20203204120403 has 2 divisors, whose sum is σ = 20203204120404. Its totient is φ = 20203204120402.

The previous prime is 20203204120397. The next prime is 20203204120409. The reversal of 20203204120403 is 30402140230202.

It is a balanced prime because it is at equal distance from previous prime (20203204120397) and next prime (20203204120409).

It is a cyclic number.

It is not a de Polignac number, because 20203204120403 - 2²⁰ = 20203203071827 is a prime.

It is not a weakly prime, because it can be changed into another prime (20203204120409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101602060201 + 10101602060202.

It is an arithmetic number, because the mean of its divisors is an integer number (10101602060202).

Almost surely, 2^{20203204120403} is an apocalyptic number.

20203204120403 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203204120403 is an equidigital number, since it uses as much as digits as its factorization.

20203204120403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20203204120403 its reverse (30402140230202), we get a palindrome (50605344350605).

The spelling of 20203204120403 in words is "twenty trillion, two hundred three billion, two hundred four million, one hundred twenty thousand, four hundred three".