20100103231 has 8 divisors (see below), whose sum is σ = 21708293600. Its totient is φ = 18500774112.

The previous prime is 20100103207. The next prime is 20100103241. The reversal of 20100103231 is 13230100102.

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 20100103231 - 2⁹ = 20100102719 is a prime.

It is a super-2 number, since 2×20100103231² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100103241) 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, 2210595 + ... + 2219668.

It is an arithmetic number, because the mean of its divisors is an integer number (2713536700).

Almost surely, 2^20100103231 is an apocalyptic number.

20100103231 is a deficient number, since it is larger than the sum of its proper divisors (1608190369).

20100103231 is a wasteful number, since it uses less digits than its factorization.

20100103231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4430625.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20100103231 its reverse (13230100102), we get a palindrome (33330203333).

The spelling of 20100103231 in words is "twenty billion, one hundred million, one hundred three thousand, two hundred thirty-one".