123100103031 has 16 divisors (see below), whose sum is σ = 169833884160. Its totient is φ = 79217883360.

The previous prime is 123100103011. The next prime is 123100103083. The reversal of 123100103031 is 130301001321.

It is not a de Polignac number, because 123100103031 - 2⁶ = 123100102967 is a prime.

It is a super-2 number, since 2×123100103031² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123100103031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123100103011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200886 + ... + 535308.

It is an arithmetic number, because the mean of its divisors is an integer number (10614617760).

Almost surely, 2^123100103031 is an apocalyptic number.

123100103031 is a deficient number, since it is larger than the sum of its proper divisors (46733781129).

123100103031 is a wasteful number, since it uses less digits than its factorization.

123100103031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338686.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 123100103031 its reverse (130301001321), we get a palindrome (253401104352).

The spelling of 123100103031 in words is "one hundred twenty-three billion, one hundred million, one hundred three thousand, thirty-one".