1503231309901 has 2 divisors, whose sum is σ = 1503231309902. Its totient is φ = 1503231309900.

The previous prime is 1503231309829. The next prime is 1503231310153. The reversal of 1503231309901 is 1099031323051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 780687109225 + 722544200676 = 883565^2 + 850026^2 .

It is a cyclic number.

It is not a de Polignac number, because 1503231309901 - 2⁷ = 1503231309773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1503231309401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 751615654950 + 751615654951.

It is an arithmetic number, because the mean of its divisors is an integer number (751615654951).

Almost surely, 2^{1503231309901} is an apocalyptic number.

It is an amenable number.

1503231309901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1503231309901 is an equidigital number, since it uses as much as digits as its factorization.

1503231309901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21870, while the sum is 37.

The spelling of 1503231309901 in words is "one trillion, five hundred three billion, two hundred thirty-one million, three hundred nine thousand, nine hundred one".