4351121201123 has 2 divisors, whose sum is σ = 4351121201124. Its totient is φ = 4351121201122.

The previous prime is 4351121201101. The next prime is 4351121201173. The reversal of 4351121201123 is 3211021211534.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4351121201123 - 2¹⁶ = 4351121135587 is a prime.

It is a super-2 number, since 2×4351121201123² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4351121201092 and 4351121201101.

It is not a weakly prime, because it can be changed into another prime (4351121201173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2175560600561 + 2175560600562.

It is an arithmetic number, because the mean of its divisors is an integer number (2175560600562).

Almost surely, 2^{4351121201123} is an apocalyptic number.

4351121201123 is a deficient number, since it is larger than the sum of its proper divisors (1).

4351121201123 is an equidigital number, since it uses as much as digits as its factorization.

4351121201123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 4351121201123 its reverse (3211021211534), we get a palindrome (7562142412657).

The spelling of 4351121201123 in words is "four trillion, three hundred fifty-one billion, one hundred twenty-one million, two hundred one thousand, one hundred twenty-three".