155103451003 has 2 divisors, whose sum is σ = 155103451004. Its totient is φ = 155103451002.

The previous prime is 155103450989. The next prime is 155103451049. The reversal of 155103451003 is 300154301551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155103451003 - 2²¹ = 155101353851 is a prime.

It is not a weakly prime, because it can be changed into another prime (155103451103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77551725501 + 77551725502.

It is an arithmetic number, because the mean of its divisors is an integer number (77551725502).

Almost surely, 2^155103451003 is an apocalyptic number.

155103451003 is a deficient number, since it is larger than the sum of its proper divisors (1).

155103451003 is an equidigital number, since it uses as much as digits as its factorization.

155103451003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 155103451003 its reverse (300154301551), we get a palindrome (455257752554).

The spelling of 155103451003 in words is "one hundred fifty-five billion, one hundred three million, four hundred fifty-one thousand, three".