20203101631399 has 2 divisors, whose sum is σ = 20203101631400. Its totient is φ = 20203101631398.

The previous prime is 20203101631387. The next prime is 20203101631403. The reversal of 20203101631399 is 99313610130202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20203101631399 - 2¹⁷ = 20203101500327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20203101635399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101550815699 + 10101550815700.

It is an arithmetic number, because the mean of its divisors is an integer number (10101550815700).

Almost surely, 2^{20203101631399} is an apocalyptic number.

20203101631399 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203101631399 is an equidigital number, since it uses as much as digits as its factorization.

20203101631399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 40.

The spelling of 20203101631399 in words is "twenty trillion, two hundred three billion, one hundred one million, six hundred thirty-one thousand, three hundred ninety-nine".