1223424541501 has 2 divisors, whose sum is σ = 1223424541502. Its totient is φ = 1223424541500.

The previous prime is 1223424541499. The next prime is 1223424541543. The reversal of 1223424541501 is 1051454243221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1075431220900 + 147993320601 = 1037030^2 + 384699^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223424541501 - 2¹ = 1223424541499 is a prime.

Together with 1223424541499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223424541571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611712270750 + 611712270751.

It is an arithmetic number, because the mean of its divisors is an integer number (611712270751).

Almost surely, 2^{1223424541501} is an apocalyptic number.

It is an amenable number.

1223424541501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223424541501 is an equidigital number, since it uses as much as digits as its factorization.

1223424541501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 1223424541501 its reverse (1051454243221), we get a palindrome (2274878784722).

The spelling of 1223424541501 in words is "one trillion, two hundred twenty-three billion, four hundred twenty-four million, five hundred forty-one thousand, five hundred one".