1223502355238 has 16 divisors (see below), whose sum is σ = 1941652159920. Its totient is φ = 576611846496.

The previous prime is 1223502355237. The next prime is 1223502355253. The reversal of 1223502355238 is 8325532053221.

It is a junction number, because it is equal to n+sod(n) for n = 1223502355195 and 1223502355204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223502355237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81711881 + ... + 81726852.

It is an arithmetic number, because the mean of its divisors is an integer number (121353259995).

Almost surely, 2^{1223502355238} is an apocalyptic number.

1223502355238 is a deficient number, since it is larger than the sum of its proper divisors (718149804682).

1223502355238 is a wasteful number, since it uses less digits than its factorization.

1223502355238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163438951.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 1223502355238 in words is "one trillion, two hundred twenty-three billion, five hundred two million, three hundred fifty-five thousand, two hundred thirty-eight".