1901481039373 has 2 divisors, whose sum is σ = 1901481039374. Its totient is φ = 1901481039372.

The previous prime is 1901481039323. The next prime is 1901481039389. The reversal of 1901481039373 is 3739301841091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1901481039364 + 9 = 1378942^2 + 3^2 .

It is a cyclic number.

It is not a de Polignac number, because 1901481039373 - 2⁹ = 1901481038861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1901481039313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 950740519686 + 950740519687.

It is an arithmetic number, because the mean of its divisors is an integer number (950740519687).

Almost surely, 2^{1901481039373} is an apocalyptic number.

It is an amenable number.

1901481039373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1901481039373 is an equidigital number, since it uses as much as digits as its factorization.

1901481039373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 49.

The spelling of 1901481039373 in words is "one trillion, nine hundred one billion, four hundred eighty-one million, thirty-nine thousand, three hundred seventy-three".