1232400100143 has 16 divisors (see below), whose sum is σ = 1644250680800. Its totient is φ = 821074962816.

The previous prime is 1232400100123. The next prime is 1232400100177. The reversal of 1232400100143 is 3410010042321.

It is not a de Polignac number, because 1232400100143 - 2⁶ = 1232400100079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232400100123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34877721 + ... + 34913037.

It is an arithmetic number, because the mean of its divisors is an integer number (102765667550).

Almost surely, 2^{1232400100143} is an apocalyptic number.

1232400100143 is a deficient number, since it is larger than the sum of its proper divisors (411850580657).

1232400100143 is a wasteful number, since it uses less digits than its factorization.

1232400100143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42426.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1232400100143 its reverse (3410010042321), we get a palindrome (4642410142464).

The spelling of 1232400100143 in words is "one trillion, two hundred thirty-two billion, four hundred million, one hundred thousand, one hundred forty-three".