201240426063 has 16 divisors (see below), whose sum is σ = 273675187296. Its totient is φ = 131488381440.

The previous prime is 201240426031. The next prime is 201240426067. The reversal of 201240426063 is 360624042102.

It is not a de Polignac number, because 201240426063 - 2⁵ = 201240426031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201240426063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201240426067) 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, 526398 + ... + 824363.

It is an arithmetic number, because the mean of its divisors is an integer number (17104699206).

Almost surely, 2^201240426063 is an apocalyptic number.

201240426063 is a deficient number, since it is larger than the sum of its proper divisors (72434761233).

201240426063 is a wasteful number, since it uses less digits than its factorization.

201240426063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351754.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 201240426063 its reverse (360624042102), we get a palindrome (561864468165).

The spelling of 201240426063 in words is "two hundred one billion, two hundred forty million, four hundred twenty-six thousand, sixty-three".