123103135221002 has 16 divisors (see below), whose sum is σ = 187173012832200. Its totient is φ = 60715416410880.

The previous prime is 123103135220987. The next prime is 123103135221067. The reversal of 123103135221002 is 200122531301321.

It can be written as a sum of positive squares in 4 ways, for example, as 57113523907801 + 65989611313201 = 7557349^2 + 8123399^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821291627 + ... + 821441502.

Almost surely, 2^{123103135221002} is an apocalyptic number.

123103135221002 is a deficient number, since it is larger than the sum of its proper divisors (64069877611198).

123103135221002 is a wasteful number, since it uses less digits than its factorization.

123103135221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642733641.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 123103135221002 its reverse (200122531301321), we get a palindrome (323225666522323).

The spelling of 123103135221002 in words is "one hundred twenty-three trillion, one hundred three billion, one hundred thirty-five million, two hundred twenty-one thousand, two".