1016155001203 has 2 divisors, whose sum is σ = 1016155001204. Its totient is φ = 1016155001202.

The previous prime is 1016155001177. The next prime is 1016155001207. The reversal of 1016155001203 is 3021005516101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1016155001203 - 2⁹ = 1016155000691 is a prime.

It is not a weakly prime, because it can be changed into another prime (1016155001207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508077500601 + 508077500602.

It is an arithmetic number, because the mean of its divisors is an integer number (508077500602).

Almost surely, 2^{1016155001203} is an apocalyptic number.

1016155001203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1016155001203 is an equidigital number, since it uses as much as digits as its factorization.

1016155001203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 25.

The spelling of 1016155001203 in words is "one trillion, sixteen billion, one hundred fifty-five million, one thousand, two hundred three".