1630042316503 has 4 divisors (see below), whose sum is σ = 1630718404488. Its totient is φ = 1629366228520.

The previous prime is 1630042316447. The next prime is 1630042316527. The reversal of 1630042316503 is 3056132400361.

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

It is a cyclic number.

It is not a de Polignac number, because 1630042316503 - 2²¹ = 1630040219351 is a prime.

It is a super-2 number, since 2×1630042316503² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630042316303) 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, 338040376 + ... + 338045197.

It is an arithmetic number, because the mean of its divisors is an integer number (407679601122).

Almost surely, 2^{1630042316503} is an apocalyptic number.

1630042316503 is a deficient number, since it is larger than the sum of its proper divisors (676087985).

1630042316503 is an equidigital number, since it uses as much as digits as its factorization.

1630042316503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676087984.

The product of its (nonzero) digits is 38880, while the sum is 34.

Adding to 1630042316503 its reverse (3056132400361), we get a palindrome (4686174716864).

The spelling of 1630042316503 in words is "one trillion, six hundred thirty billion, forty-two million, three hundred sixteen thousand, five hundred three".