123964961233 has 2 divisors, whose sum is σ = 123964961234. Its totient is φ = 123964961232.

The previous prime is 123964961221. The next prime is 123964961243. The reversal of 123964961233 is 332169469321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113607421249 + 10357539984 = 337057^2 + 101772^2 .

It is an emirp because it is prime and its reverse (332169469321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123964961233 is a prime.

It is a super-2 number, since 2×123964961233² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123964961243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61982480616 + 61982480617.

It is an arithmetic number, because the mean of its divisors is an integer number (61982480617).

Almost surely, 2^123964961233 is an apocalyptic number.

It is an amenable number.

123964961233 is a deficient number, since it is larger than the sum of its proper divisors (1).

123964961233 is an equidigital number, since it uses as much as digits as its factorization.

123964961233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1259712, while the sum is 49.

The spelling of 123964961233 in words is "one hundred twenty-three billion, nine hundred sixty-four million, nine hundred sixty-one thousand, two hundred thirty-three".