1023355920385 has 8 divisors (see below), whose sum is σ = 1292660110080. Its totient is φ = 775596065904.

The previous prime is 1023355920371. The next prime is 1023355920407. The reversal of 1023355920385 is 5830295533201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1023355920385 - 2¹³ = 1023355912193 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5386083697 + ... + 5386083886.

It is an arithmetic number, because the mean of its divisors is an integer number (161582513760).

Almost surely, 2^{1023355920385} is an apocalyptic number.

It is an amenable number.

1023355920385 is a deficient number, since it is larger than the sum of its proper divisors (269304189695).

1023355920385 is a wasteful number, since it uses less digits than its factorization.

1023355920385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10772167607.

The product of its (nonzero) digits is 972000, while the sum is 46.

The spelling of 1023355920385 in words is "one trillion, twenty-three billion, three hundred fifty-five million, nine hundred twenty thousand, three hundred eighty-five".