1331123010103 has 4 divisors (see below), whose sum is σ = 1331209176808. Its totient is φ = 1331036843400.

The previous prime is 1331123010097. The next prime is 1331123010187. The reversal of 1331123010103 is 3010103211331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1331123010103 - 2³³ = 1322533075511 is a prime.

It is a super-3 number, since 3×1331123010103³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331123010703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43060176 + ... + 43091077.

It is an arithmetic number, because the mean of its divisors is an integer number (332802294202).

Almost surely, 2^{1331123010103} is an apocalyptic number.

1331123010103 is a deficient number, since it is larger than the sum of its proper divisors (86166705).

1331123010103 is an equidigital number, since it uses as much as digits as its factorization.

1331123010103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86166704.

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

Adding to 1331123010103 its reverse (3010103211331), we get a palindrome (4341226221434).

The spelling of 1331123010103 in words is "one trillion, three hundred thirty-one billion, one hundred twenty-three million, ten thousand, one hundred three".