1223052401535 has 32 divisors (see below), whose sum is σ = 1987151616000. Its totient is φ = 642266693376.

The previous prime is 1223052401497. The next prime is 1223052401567. The reversal of 1223052401535 is 5351042503221.

It is not a de Polignac number, because 1223052401535 - 2⁸ = 1223052401279 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1223052401496 and 1223052401505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1597555 + ... + 2235684.

It is an arithmetic number, because the mean of its divisors is an integer number (62098488000).

Almost surely, 2^{1223052401535} is an apocalyptic number.

1223052401535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1223052401535 is a deficient number, since it is larger than the sum of its proper divisors (764099214465).

1223052401535 is a wasteful number, since it uses less digits than its factorization.

1223052401535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3833575.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 1223052401535 its reverse (5351042503221), we get a palindrome (6574094904756).

The spelling of 1223052401535 in words is "one trillion, two hundred twenty-three billion, fifty-two million, four hundred one thousand, five hundred thirty-five".