231021100003 has 16 divisors (see below), whose sum is σ = 238767699456. Its totient is φ = 223383867840.

The previous prime is 231021099989. The next prime is 231021100027. The reversal of 231021100003 is 300001120132.

It is a cyclic number.

It is not a de Polignac number, because 231021100003 - 2²⁵ = 230987545571 is a prime.

It is a super-2 number, since 2×231021100003² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231021100043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17315151 + ... + 17328487.

It is an arithmetic number, because the mean of its divisors is an integer number (14922981216).

Almost surely, 2^231021100003 is an apocalyptic number.

231021100003 is a deficient number, since it is larger than the sum of its proper divisors (7746599453).

231021100003 is a wasteful number, since it uses less digits than its factorization.

231021100003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17394.

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

Adding to 231021100003 its reverse (300001120132), we get a palindrome (531022220135).

The spelling of 231021100003 in words is "two hundred thirty-one billion, twenty-one million, one hundred thousand, three".