12143723475 has 48 divisors (see below), whose sum is σ = 22893972192. Its totient is φ = 5626767360.

The previous prime is 12143723467. The next prime is 12143723483. The reversal of 12143723475 is 57432734121.

It is an interprime number because it is at equal distance from previous prime (12143723467) and next prime (12143723483).

It is not a de Polignac number, because 12143723475 - 2³ = 12143723467 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 349752 + ... + 382901.

It is an arithmetic number, because the mean of its divisors is an integer number (476957754).

Almost surely, 2^12143723475 is an apocalyptic number.

12143723475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12143723475 is a deficient number, since it is larger than the sum of its proper divisors (10750248717).

12143723475 is a wasteful number, since it uses less digits than its factorization.

12143723475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732696 (or 732691 counting only the distinct ones).

The product of its digits is 141120, while the sum is 39.

The spelling of 12143723475 in words is "twelve billion, one hundred forty-three million, seven hundred twenty-three thousand, four hundred seventy-five".