20124021003 has 8 divisors (see below), whose sum is σ = 26931776400. Its totient is φ = 13366139808.

The previous prime is 20124020989. The next prime is 20124021023. The reversal of 20124021003 is 30012042102.

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

It is not a de Polignac number, because 20124021003 - 2⁹ = 20124020491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20124021023) 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, 12467608 + ... + 12469221.

It is an arithmetic number, because the mean of its divisors is an integer number (3366472050).

Almost surely, 2^20124021003 is an apocalyptic number.

20124021003 is a deficient number, since it is larger than the sum of its proper divisors (6807755397).

20124021003 is a wasteful number, since it uses less digits than its factorization.

20124021003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24937101.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20124021003 its reverse (30012042102), we get a palindrome (50136063105).

The spelling of 20124021003 in words is "twenty billion, one hundred twenty-four million, twenty-one thousand, three".