1023355920383 has 4 divisors (see below), whose sum is σ = 1023647395248. Its totient is φ = 1023064445520.

The previous prime is 1023355920371. The next prime is 1023355920407. The reversal of 1023355920383 is 3830295533201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1023355920383 - 2¹² = 1023355916287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023355920583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145732166 + ... + 145739187.

It is an arithmetic number, because the mean of its divisors is an integer number (255911848812).

Almost surely, 2^{1023355920383} is an apocalyptic number.

1023355920383 is a deficient number, since it is larger than the sum of its proper divisors (291474865).

1023355920383 is an equidigital number, since it uses as much as digits as its factorization.

1023355920383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291474864.

The product of its (nonzero) digits is 583200, while the sum is 44.

The spelling of 1023355920383 in words is "one trillion, twenty-three billion, three hundred fifty-five million, nine hundred twenty thousand, three hundred eighty-three".