1903800126413 has 2 divisors, whose sum is σ = 1903800126414. Its totient is φ = 1903800126412.

The previous prime is 1903800126373. The next prime is 1903800126433. The reversal of 1903800126413 is 3146210083091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 979581308644 + 924218817769 = 989738^2 + 961363^2 .

It is a cyclic number.

It is not a de Polignac number, because 1903800126413 - 2⁸ = 1903800126157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1903800126433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 951900063206 + 951900063207.

It is an arithmetic number, because the mean of its divisors is an integer number (951900063207).

Almost surely, 2^{1903800126413} is an apocalyptic number.

It is an amenable number.

1903800126413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1903800126413 is an equidigital number, since it uses as much as digits as its factorization.

1903800126413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 1903800126413 in words is "one trillion, nine hundred three billion, eight hundred million, one hundred twenty-six thousand, four hundred thirteen".