1023120445355 has 16 divisors (see below), whose sum is σ = 1234389922560. Its totient is φ = 814076714112.

The previous prime is 1023120445313. The next prime is 1023120445363. The reversal of 1023120445355 is 5535440213201.

It is a cyclic number.

It is not a de Polignac number, because 1023120445355 - 2¹⁶ = 1023120379819 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108326 + ... + 1434564.

It is an arithmetic number, because the mean of its divisors is an integer number (77149370160).

Almost surely, 2^{1023120445355} is an apocalyptic number.

1023120445355 is a deficient number, since it is larger than the sum of its proper divisors (211269477205).

1023120445355 is a wasteful number, since it uses less digits than its factorization.

1023120445355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327078.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 1023120445355 its reverse (5535440213201), we get a palindrome (6558560658556).

The spelling of 1023120445355 in words is "one trillion, twenty-three billion, one hundred twenty million, four hundred forty-five thousand, three hundred fifty-five".