1003149923273 has 2 divisors, whose sum is σ = 1003149923274. Its totient is φ = 1003149923272.

The previous prime is 1003149923257. The next prime is 1003149923287. The reversal of 1003149923273 is 3723299413001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 968122180624 + 35027742649 = 983932^2 + 187157^2 .

It is a cyclic number.

It is not a de Polignac number, because 1003149923273 - 2⁴ = 1003149923257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1003149923213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501574961636 + 501574961637.

It is an arithmetic number, because the mean of its divisors is an integer number (501574961637).

Almost surely, 2^{1003149923273} is an apocalyptic number.

It is an amenable number.

1003149923273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003149923273 is an equidigital number, since it uses as much as digits as its factorization.

1003149923273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 44.

The spelling of 1003149923273 in words is "one trillion, three billion, one hundred forty-nine million, nine hundred twenty-three thousand, two hundred seventy-three".