1542231112201 has 4 divisors (see below), whose sum is σ = 1660864274692. Its totient is φ = 1423597949712.

The previous prime is 1542231112199. The next prime is 1542231112277. The reversal of 1542231112201 is 1022111322451.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 890418704400 + 651812407801 = 943620^2 + 807349^2 .

It is a cyclic number.

It is not a de Polignac number, because 1542231112201 - 2¹ = 1542231112199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1542231112801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59316581226 + ... + 59316581251.

It is an arithmetic number, because the mean of its divisors is an integer number (415216068673).

Almost surely, 2^{1542231112201} is an apocalyptic number.

It is an amenable number.

1542231112201 is a deficient number, since it is larger than the sum of its proper divisors (118633162491).

1542231112201 is a wasteful number, since it uses less digits than its factorization.

1542231112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118633162490.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 1542231112201 its reverse (1022111322451), we get a palindrome (2564342434652).

The spelling of 1542231112201 in words is "one trillion, five hundred forty-two billion, two hundred thirty-one million, one hundred twelve thousand, two hundred one".