20507347003 has 8 divisors (see below), whose sum is σ = 24092547696. Its totient is φ = 17208962400.

The previous prime is 20507347001. The next prime is 20507347039. The reversal of 20507347003 is 30074370502.

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 20507347003 - 2¹ = 20507347001 is a prime.

It is a super-2 number, since 2×20507347003² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20507347001) 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, 71703868 + ... + 71704153.

It is an arithmetic number, because the mean of its divisors is an integer number (3011568462).

Almost surely, 2^20507347003 is an apocalyptic number.

20507347003 is a deficient number, since it is larger than the sum of its proper divisors (3585200693).

20507347003 is a wasteful number, since it uses less digits than its factorization.

20507347003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143408045.

The product of its (nonzero) digits is 17640, while the sum is 31.

The spelling of 20507347003 in words is "twenty billion, five hundred seven million, three hundred forty-seven thousand, three".