1283011009111 has 16 divisors (see below), whose sum is σ = 1390493104000. Its totient is φ = 1183795370784.

The previous prime is 1283011009039. The next prime is 1283011009129. The reversal of 1283011009111 is 1119001103821.

It is not a de Polignac number, because 1283011009111 - 2⁹ = 1283011008599 is a prime.

It is a super-2 number, since 2×1283011009111² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1283011009111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283011009141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4896865 + ... + 5152213.

It is an arithmetic number, because the mean of its divisors is an integer number (86905819000).

Almost surely, 2^{1283011009111} is an apocalyptic number.

1283011009111 is a deficient number, since it is larger than the sum of its proper divisors (107482094889).

1283011009111 is an equidigital number, since it uses as much as digits as its factorization.

1283011009111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257675 (or 257649 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 28.

The spelling of 1283011009111 in words is "one trillion, two hundred eighty-three billion, eleven million, nine thousand, one hundred eleven".