2321021011123 has 2 divisors, whose sum is σ = 2321021011124. Its totient is φ = 2321021011122.

The previous prime is 2321021011109. The next prime is 2321021011129. The reversal of 2321021011123 is 3211101201232.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2321021011123 is a prime.

It is a super-2 number, since 2×2321021011123² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2321021011123.

It is not a weakly prime, because it can be changed into another prime (2321021011129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160510505561 + 1160510505562.

It is an arithmetic number, because the mean of its divisors is an integer number (1160510505562).

Almost surely, 2^{2321021011123} is an apocalyptic number.

2321021011123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321021011123 is an equidigital number, since it uses as much as digits as its factorization.

2321021011123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2321021011123 its reverse (3211101201232), we get a palindrome (5532122212355).

It can be divided in two parts, 232102 and 1011123, that added together give a square (1243225 = 1115²).

The spelling of 2321021011123 in words is "two trillion, three hundred twenty-one billion, twenty-one million, eleven thousand, one hundred twenty-three".