1231323100103 has 8 divisors (see below), whose sum is σ = 1287085692768. Its totient is φ = 1175746074624.

The previous prime is 1231323100079. The next prime is 1231323100153. The reversal of 1231323100103 is 3010013231321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1231323100103 - 2²² = 1231318905799 is a prime.

It is a super-2 number, since 2×1231323100103² (a number of 25 digits) contains 22 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 (1231323100153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46378226 + ... + 46404767.

It is an arithmetic number, because the mean of its divisors is an integer number (160885711596).

Almost surely, 2^{1231323100103} is an apocalyptic number.

1231323100103 is a deficient number, since it is larger than the sum of its proper divisors (55762592665).

1231323100103 is an equidigital number, since it uses as much as digits as its factorization.

1231323100103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92783593.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1231323100103 its reverse (3010013231321), we get a palindrome (4241336331424).

The spelling of 1231323100103 in words is "one trillion, two hundred thirty-one billion, three hundred twenty-three million, one hundred thousand, one hundred three".