1223502031641 has 32 divisors (see below), whose sum is σ = 1690470466560. Its totient is φ = 786197954304.

The previous prime is 1223502031637. The next prime is 1223502031643. The reversal of 1223502031641 is 1461302053221.

It is not a de Polignac number, because 1223502031641 - 2² = 1223502031637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1223502031599 and 1223502031608.

It is not an unprimeable number, because it can be changed into a prime (1223502031643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191978931 + ... + 191985303.

It is an arithmetic number, because the mean of its divisors is an integer number (52827202080).

Almost surely, 2^{1223502031641} is an apocalyptic number.

It is an amenable number.

1223502031641 is a deficient number, since it is larger than the sum of its proper divisors (466968434919).

1223502031641 is a wasteful number, since it uses less digits than its factorization.

1223502031641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9825.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 1223502031641 its reverse (1461302053221), we get a palindrome (2684804084862).

The spelling of 1223502031641 in words is "one trillion, two hundred twenty-three billion, five hundred two million, thirty-one thousand, six hundred forty-one".