1523311312011 has 16 divisors (see below), whose sum is σ = 2098572994560. Its totient is φ = 981856892160.

The previous prime is 1523311311959. The next prime is 1523311312063. The reversal of 1523311312011 is 1102131133251.

It is an interprime number because it is at equal distance from previous prime (1523311311959) and next prime (1523311312063).

It is not a de Polignac number, because 1523311312011 - 2⁶ = 1523311311947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1523311312811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7605606 + ... + 7803323.

It is an arithmetic number, because the mean of its divisors is an integer number (131160812160).

Almost surely, 2^{1523311312011} is an apocalyptic number.

1523311312011 is a deficient number, since it is larger than the sum of its proper divisors (575261682549).

1523311312011 is a wasteful number, since it uses less digits than its factorization.

1523311312011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15410026.

The product of its (nonzero) digits is 540, while the sum is 24.

Adding to 1523311312011 its reverse (1102131133251), we get a palindrome (2625442445262).

The spelling of 1523311312011 in words is "one trillion, five hundred twenty-three billion, three hundred eleven million, three hundred twelve thousand, eleven".