123130302123 has 32 divisors (see below), whose sum is σ = 181704441600. Its totient is φ = 73853942400.

The previous prime is 123130302121. The next prime is 123130302143. The reversal of 123130302123 is 321203031321.

It is not a de Polignac number, because 123130302123 - 2¹ = 123130302121 is a prime.

It is a super-2 number, since 2×123130302123² (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 123130302123.

It is not an unprimeable number, because it can be changed into a prime (123130302121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 509733 + ... + 711398.

It is an arithmetic number, because the mean of its divisors is an integer number (5678263800).

Almost surely, 2^123130302123 is an apocalyptic number.

123130302123 is a deficient number, since it is larger than the sum of its proper divisors (58574139477).

123130302123 is a wasteful number, since it uses less digits than its factorization.

123130302123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221243.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 123130302123 its reverse (321203031321), we get a palindrome (444333333444).

The spelling of 123130302123 in words is "one hundred twenty-three billion, one hundred thirty million, three hundred two thousand, one hundred twenty-three".