10203221937457 has 2 divisors, whose sum is σ = 10203221937458. Its totient is φ = 10203221937456.

The previous prime is 10203221937421. The next prime is 10203221937473. The reversal of 10203221937457 is 75473912230201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6504739092721 + 3698482844736 = 2550439^2 + 1923144^2 .

It is a cyclic number.

It is not a de Polignac number, because 10203221937457 - 2²³ = 10203213548849 is a prime.

It is not a weakly prime, because it can be changed into another prime (10203221937407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101610968728 + 5101610968729.

It is an arithmetic number, because the mean of its divisors is an integer number (5101610968729).

Almost surely, 2^{10203221937457} is an apocalyptic number.

It is an amenable number.

10203221937457 is a deficient number, since it is larger than the sum of its proper divisors (1).

10203221937457 is an equidigital number, since it uses as much as digits as its factorization.

10203221937457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 10203221937457 in words is "ten trillion, two hundred three billion, two hundred twenty-one million, nine hundred thirty-seven thousand, four hundred fifty-seven".