20103601487 has 4 divisors (see below), whose sum is σ = 20125767336. Its totient is φ = 20081435640.

The previous prime is 20103601471. The next prime is 20103601493. The reversal of 20103601487 is 78410630102.

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 20103601487 - 2⁴ = 20103601471 is a prime.

It is a super-2 number, since 2×20103601487² (a number of 21 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 (20103601087) 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, 11081564 + ... + 11083377.

It is an arithmetic number, because the mean of its divisors is an integer number (5031441834).

Almost surely, 2^20103601487 is an apocalyptic number.

20103601487 is a deficient number, since it is larger than the sum of its proper divisors (22165849).

20103601487 is an equidigital number, since it uses as much as digits as its factorization.

20103601487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22165848.

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 20103601487 in words is "twenty billion, one hundred three million, six hundred one thousand, four hundred eighty-seven".