30561345506503 has 8 divisors (see below), whose sum is σ = 34933295876480. Its totient is φ = 26190906103800.

The previous prime is 30561345506491. The next prime is 30561345506561. The reversal of 30561345506503 is 30560554316503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30561345506503 - 2³³ = 30552755571911 is a prime.

It is a super-2 number, since 2×30561345506503² (a number of 28 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 (30561345506803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377698473 + ... + 377779378.

It is an arithmetic number, because the mean of its divisors is an integer number (4366661984560).

Almost surely, 2^{30561345506503} is an apocalyptic number.

30561345506503 is a deficient number, since it is larger than the sum of its proper divisors (4371950369977).

30561345506503 is an equidigital number, since it uses as much as digits as its factorization.

30561345506503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755483637.

The product of its (nonzero) digits is 2430000, while the sum is 46.

The spelling of 30561345506503 in words is "thirty trillion, five hundred sixty-one billion, three hundred forty-five million, five hundred six thousand, five hundred three".