123103311431534 has 16 divisors (see below), whose sum is σ = 211036229242368. Its totient is φ = 52758066773592.

The previous prime is 123103311431531. The next prime is 123103311431537. The reversal of 123103311431534 is 435134113301321.

It is an interprime number because it is at equal distance from previous prime (123103311431531) and next prime (123103311431537).

It is a junction number, because it is equal to n+sod(n) for n = 123103311431494 and 123103311431503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123103311431531) 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, 39725762 + ... + 42712325.

It is an arithmetic number, because the mean of its divisors is an integer number (13189764327648).

Almost surely, 2^{123103311431534} is an apocalyptic number.

123103311431534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

123103311431534 is a deficient number, since it is larger than the sum of its proper divisors (87932917810834).

123103311431534 is a wasteful number, since it uses less digits than its factorization.

123103311431534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82544759.

The product of its (nonzero) digits is 38880, while the sum is 35.

Adding to 123103311431534 its reverse (435134113301321), we get a palindrome (558237424732855).

The spelling of 123103311431534 in words is "one hundred twenty-three trillion, one hundred three billion, three hundred eleven million, four hundred thirty-one thousand, five hundred thirty-four".