231030123031 has 16 divisors (see below), whose sum is σ = 235787738400. Its totient is φ = 226327039488.

The previous prime is 231030123013. The next prime is 231030123053. The reversal of 231030123031 is 130321030132.

It is a cyclic number.

It is not a de Polignac number, because 231030123031 - 2¹⁹ = 231029598743 is a prime.

It is a super-2 number, since 2×231030123031² (a number of 24 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 (231030123431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6358825 + ... + 6395053.

It is an arithmetic number, because the mean of its divisors is an integer number (14736733650).

Almost surely, 2^231030123031 is an apocalyptic number.

231030123031 is a deficient number, since it is larger than the sum of its proper divisors (4757615369).

231030123031 is a wasteful number, since it uses less digits than its factorization.

231030123031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36978.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 231030123031 its reverse (130321030132), we get a palindrome (361351153163).

It can be divided in two parts, 2310301 and 23031, that added together give a palindrome (2333332).

The spelling of 231030123031 in words is "two hundred thirty-one billion, thirty million, one hundred twenty-three thousand, thirty-one".