121232313040143 has 16 divisors (see below), whose sum is σ = 161853629728896. Its totient is φ = 80716271045280.

The previous prime is 121232313040127. The next prime is 121232313040151. The reversal of 121232313040143 is 341040313232121.

It is not a de Polignac number, because 121232313040143 - 2⁴ = 121232313040127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121232313040143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121232313040103) 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, 450927348 + ... + 451196118.

It is an arithmetic number, because the mean of its divisors is an integer number (10115851858056).

Almost surely, 2^{121232313040143} is an apocalyptic number.

121232313040143 is a deficient number, since it is larger than the sum of its proper divisors (40621316688753).

121232313040143 is a wasteful number, since it uses less digits than its factorization.

121232313040143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464054.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 121232313040143 its reverse (341040313232121), we get a palindrome (462272626272264).

The spelling of 121232313040143 in words is "one hundred twenty-one trillion, two hundred thirty-two billion, three hundred thirteen million, forty thousand, one hundred forty-three".