1011331030123 has 2 divisors, whose sum is σ = 1011331030124. Its totient is φ = 1011331030122.

The previous prime is 1011331030093. The next prime is 1011331030201. The reversal of 1011331030123 is 3210301331101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011331030123 - 2⁵ = 1011331030091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1011331030123.

It is not a weakly prime, because it can be changed into another prime (1011331030223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505665515061 + 505665515062.

It is an arithmetic number, because the mean of its divisors is an integer number (505665515062).

Almost surely, 2^{1011331030123} is an apocalyptic number.

1011331030123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011331030123 is an equidigital number, since it uses as much as digits as its factorization.

1011331030123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 1011331030123 its reverse (3210301331101), we get a palindrome (4221632361224).

The spelling of 1011331030123 in words is "one trillion, eleven billion, three hundred thirty-one million, thirty thousand, one hundred twenty-three".