12143545700 has 108 divisors (see below), whose sum is σ = 31128976368. Its totient is φ = 4076092800.

The previous prime is 12143545699. The next prime is 12143545703. The reversal of 12143545700 is 754534121.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12143545703) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 153239 + ... + 218561.

Almost surely, 2^12143545700 is an apocalyptic number.

12143545700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12143545700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15564488184).

12143545700 is an abundant number, since it is smaller than the sum of its proper divisors (18985430668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12143545700 is a wasteful number, since it uses less digits than its factorization.

12143545700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65374 (or 65354 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The spelling of 12143545700 in words is "twelve billion, one hundred forty-three million, five hundred forty-five thousand, seven hundred".