231012001123 has 2 divisors, whose sum is σ = 231012001124. Its totient is φ = 231012001122.

The previous prime is 231012001093. The next prime is 231012001169. The reversal of 231012001123 is 321100210132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231012001123 - 2¹⁷ = 231011870051 is a prime.

It is a super-2 number, since 2×231012001123² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231012001097 and 231012001106.

It is not a weakly prime, because it can be changed into another prime (231012001823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115506000561 + 115506000562.

It is an arithmetic number, because the mean of its divisors is an integer number (115506000562).

Almost surely, 2^231012001123 is an apocalyptic number.

231012001123 is a deficient number, since it is larger than the sum of its proper divisors (1).

231012001123 is an equidigital number, since it uses as much as digits as its factorization.

231012001123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 231012001123 its reverse (321100210132), we get a palindrome (552112211255).

The spelling of 231012001123 in words is "two hundred thirty-one billion, twelve million, one thousand, one hundred twenty-three".