2321131123 has 2 divisors, whose sum is σ = 2321131124. Its totient is φ = 2321131122.

The previous prime is 2321131117. The next prime is 2321131133. The reversal of 2321131123 is 3211311232.

2321131123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2321131123 is a prime.

It is a super-2 number, since 2×2321131123² = 10775299380318482258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2321131123.

It is not a weakly prime, because it can be changed into another prime (2321131133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160565561 + 1160565562.

It is an arithmetic number, because the mean of its divisors is an integer number (1160565562).

Almost surely, 2^2321131123 is an apocalyptic number.

2321131123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321131123 is an equidigital number, since it uses as much as digits as its factorization.

2321131123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 19.

The square root of 2321131123 is about 48178.1187158652. The cubic root of 2321131123 is about 1324.0362989884.

Adding to 2321131123 its reverse (3211311232), we get a palindrome (5532442355).

It can be divided in two parts, 2 and 321131123, that multiplied together give a palindrome (642262246).

The spelling of 2321131123 in words is "two billion, three hundred twenty-one million, one hundred thirty-one thousand, one hundred twenty-three".