1283911355523 has 16 divisors (see below), whose sum is σ = 1721788116480. Its totient is φ = 850989653856.

The previous prime is 1283911355513. The next prime is 1283911355539. The reversal of 1283911355523 is 3255531193821.

It is not a de Polignac number, because 1283911355523 - 2⁵ = 1283911355491 is a prime.

It is a super-3 number, since 3×1283911355523³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1283911355513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2490886 + ... + 2961812.

It is an arithmetic number, because the mean of its divisors is an integer number (107611757280).

Almost surely, 2^{1283911355523} is an apocalyptic number.

1283911355523 is a deficient number, since it is larger than the sum of its proper divisors (437876760957).

1283911355523 is a wasteful number, since it uses less digits than its factorization.

1283911355523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476186.

The product of its digits is 972000, while the sum is 48.

The spelling of 1283911355523 in words is "one trillion, two hundred eighty-three billion, nine hundred eleven million, three hundred fifty-five thousand, five hundred twenty-three".