123103131302 has 4 divisors (see below), whose sum is σ = 184654696956. Its totient is φ = 61551565650.

The previous prime is 123103131301. The next prime is 123103131329. The reversal of 123103131302 is 203131301321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 203131301321 = 13 ⋅15625484717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123103131301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30775782824 + ... + 30775782827.

It is an arithmetic number, because the mean of its divisors is an integer number (46163674239).

Almost surely, 2^123103131302 is an apocalyptic number.

123103131302 is a deficient number, since it is larger than the sum of its proper divisors (61551565654).

123103131302 is an equidigital number, since it uses as much as digits as its factorization.

123103131302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61551565653.

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

Adding to 123103131302 its reverse (203131301321), we get a palindrome (326234432623).

The spelling of 123103131302 in words is "one hundred twenty-three billion, one hundred three million, one hundred thirty-one thousand, three hundred two".