20203101631403 has 2 divisors, whose sum is σ = 20203101631404. Its totient is φ = 20203101631402.

The previous prime is 20203101631399. The next prime is 20203101631411. The reversal of 20203101631403 is 30413610130202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20203101631403 - 2² = 20203101631399 is a prime.

It is not a weakly prime, because it can be changed into another prime (20203101631483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101550815701 + 10101550815702.

It is an arithmetic number, because the mean of its divisors is an integer number (10101550815702).

Almost surely, 2^{20203101631403} is an apocalyptic number.

20203101631403 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203101631403 is an equidigital number, since it uses as much as digits as its factorization.

20203101631403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 20203101631403 its reverse (30413610130202), we get a palindrome (50616711761605).

The spelling of 20203101631403 in words is "twenty trillion, two hundred three billion, one hundred one million, six hundred thirty-one thousand, four hundred three".