12143123402 has 32 divisors (see below), whose sum is σ = 19262380800. Its totient is φ = 5725375488.

The previous prime is 12143123393. The next prime is 12143123423. The reversal of 12143123402 is 20432134121.

It is an unprimeable number.

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, 11686799 + ... + 11687837.

It is an arithmetic number, because the mean of its divisors is an integer number (601949400).

Almost surely, 2^12143123402 is an apocalyptic number.

12143123402 is a deficient number, since it is larger than the sum of its proper divisors (7119257398).

12143123402 is a wasteful number, since it uses less digits than its factorization.

12143123402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12143123402 its reverse (20432134121), we get a palindrome (32575257523).

The spelling of 12143123402 in words is "twelve billion, one hundred forty-three million, one hundred twenty-three thousand, four hundred two".