1423453061503 has 4 divisors (see below), whose sum is σ = 1552857885288. Its totient is φ = 1294048237720.

The previous prime is 1423453061353. The next prime is 1423453061557. The reversal of 1423453061503 is 3051603543241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1423453061503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423453061203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64702411876 + ... + 64702411897.

It is an arithmetic number, because the mean of its divisors is an integer number (388214471322).

Almost surely, 2^{1423453061503} is an apocalyptic number.

1423453061503 is a deficient number, since it is larger than the sum of its proper divisors (129404823785).

1423453061503 is a wasteful number, since it uses less digits than its factorization.

1423453061503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129404823784.

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 1423453061503 in words is "one trillion, four hundred twenty-three billion, four hundred fifty-three million, sixty-one thousand, five hundred three".