1331203333123 has 6 divisors (see below), whose sum is σ = 1414115651756. Its totient is φ = 1252897254432.

The previous prime is 1331203333067. The next prime is 1331203333127. The reversal of 1331203333123 is 3213333021331.

It is not a de Polignac number, because 1331203333123 - 2²⁵ = 1331169778691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331203333091 and 1331203333100.

It is not an unprimeable number, because it can be changed into a prime (1331203333127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2303119665 + ... + 2303120242.

Almost surely, 2^{1331203333123} is an apocalyptic number.

1331203333123 is a deficient number, since it is larger than the sum of its proper divisors (82912318633).

1331203333123 is an equidigital number, since it uses as much as digits as its factorization.

1331203333123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4606239941 (or 4606239924 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 28.

Adding to 1331203333123 its reverse (3213333021331), we get a palindrome (4544536354454).

The spelling of 1331203333123 in words is "one trillion, three hundred thirty-one billion, two hundred three million, three hundred thirty-three thousand, one hundred twenty-three".