123103421031 has 8 divisors (see below), whose sum is σ = 166587714304. Its totient is φ = 80844037560.

The previous prime is 123103420991. The next prime is 123103421083. The reversal of 123103421031 is 130124301321.

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

It is not a de Polignac number, because 123103421031 - 2⁶ = 123103420967 is a prime.

It is a super-2 number, since 2×123103421031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123103420989 and 123103421007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123103421431) 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 7 ways as a sum of consecutive naturals, for example, 306227215 + ... + 306227616.

It is an arithmetic number, because the mean of its divisors is an integer number (20823464288).

Almost surely, 2^123103421031 is an apocalyptic number.

123103421031 is a deficient number, since it is larger than the sum of its proper divisors (43484293273).

123103421031 is an equidigital number, since it uses as much as digits as its factorization.

123103421031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612454901.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 123103421031 its reverse (130124301321), we get a palindrome (253227722352).

The spelling of 123103421031 in words is "one hundred twenty-three billion, one hundred three million, four hundred twenty-one thousand, thirty-one".