123543131201 has 16 divisors (see below), whose sum is σ = 147361234944. Its totient is φ = 101269192464.

The previous prime is 123543131189. The next prime is 123543131317. The reversal of 123543131201 is 102131345321.

It is not a de Polignac number, because 123543131201 - 2²⁶ = 123476022337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123543131801) 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, 732320 + ... + 885086.

It is an arithmetic number, because the mean of its divisors is an integer number (9210077184).

Almost surely, 2^123543131201 is an apocalyptic number.

It is an amenable number.

123543131201 is a deficient number, since it is larger than the sum of its proper divisors (23818103743).

123543131201 is a wasteful number, since it uses less digits than its factorization.

123543131201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157820.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 123543131201 its reverse (102131345321), we get a palindrome (225674476522).

The spelling of 123543131201 in words is "one hundred twenty-three billion, five hundred forty-three million, one hundred thirty-one thousand, two hundred one".