1331012133123 has 16 divisors (see below), whose sum is σ = 1807534108800. Its totient is φ = 871059245760.

The previous prime is 1331012133107. The next prime is 1331012133127. The reversal of 1331012133123 is 3213312101331.

It is not a de Polignac number, because 1331012133123 - 2⁴ = 1331012133107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1331012133093 and 1331012133102.

It is not an unprimeable number, because it can be changed into a prime (1331012133127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17894773 + ... + 17968998.

It is an arithmetic number, because the mean of its divisors is an integer number (112970881800).

Almost surely, 2^{1331012133123} is an apocalyptic number.

1331012133123 is a deficient number, since it is larger than the sum of its proper divisors (476521975677).

1331012133123 is a wasteful number, since it uses less digits than its factorization.

1331012133123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35864002.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 1331012133123 its reverse (3213312101331), we get a palindrome (4544324234454).

The spelling of 1331012133123 in words is "one trillion, three hundred thirty-one billion, twelve million, one hundred thirty-three thousand, one hundred twenty-three".